Every shift starts with shared understanding.
Decode rosters, plan coverage, and make sense of workforce reports—with clear definitions and practical scheduling context.
PEOPLE · COVERAGE · TIME
One reference. Connected understanding.
Searches definitions, examples, and alternate spellings. Press Enter to jump to results.
Up to 8,000 characters. Matches known acronyms and short aliases. Single-letter shift codes are excluded; search those individually. Keep capitalization on to reduce matches with ordinary words. This tool runs locally and does not save your passage.
Interactive search needs JavaScript. The full reference is available in the alphabetical index below; use your browser’s Find command to search it.
Try a different term or clear your filters.
Exports and printouts include every matching result. Saved terms stay in this browser.
Federal & recurring schedules · Schedule pattern · General scheduling — A rotating pattern of work and rest blocks often used in continuous operations.
In practice: Specify shift length, teams, and the complete cycle with a 2-2-3 roster.
Variants differ; assess fatigue and actual workweeks.
Federal & recurring schedules · Schedule pattern · General scheduling — A schedule notation describing four 10-hour workdays in a recurring week.
In practice: A 4/10 pattern totals 40 scheduled work hours before adjustments.
Daily-overtime rules, breaks, and applicable authorization must be checked.
Federal & recurring schedules · Schedule pattern · Federal scheduling context — Federal schedule shorthand commonly describing eight 9-hour days, one 8-hour day, and one day off per two-week period.
In practice: Confirm the agency's 5/4/9 tour and holiday rules.
Similar numerical hours can have different administrative treatment.
Federal & recurring schedules · Schedule pattern · General scheduling — A schedule notation describing five 8-hour workdays in a recurring week.
In practice: Use 5/8 as a pattern label with actual shift times and breaks.
A pattern label is not a pay calculation.
Federal & recurring schedules · Schedule pattern · General scheduling — A two-week pattern commonly using eight 9-hour days and one 8-hour day.
In practice: Check the defined workweek boundary when implementing 9/80.
The pattern alone does not guarantee overtime-free operation.
Federal & recurring schedules · Schedule pattern · General scheduling — Continuous operating coverage rather than a single employee's schedule.
In practice: Use several teams to cover a 24/7 service.
Do not interpret continuous operations as continuous individual work.
US rules & agreements · Law or regulatory term · U.S. federal — Federal health-care law with employer provisions using specific full-time and service-hour concepts.
In practice: Keep ACA eligibility calculations separate from scheduling FTE estimates.
Contact center staffing · Contact center term · Contact centers — Routing incoming calls to available agents or queues using defined rules.
In practice: Check ACD workload when planning interval staffing.
Contact center staffing · Contact center term · Contact centers — Work associated with an interaction after the customer contact ends.
In practice: Include required ACW when estimating agent workload.
Some systems use after-call work for the same label.
US rules & agreements · Law or regulatory term · U.S. federal — Federal disability-rights law with employment accommodation and discrimination provisions.
In practice: Review a schedule-adjustment request through the accommodation process.
Contact center staffing · Contact center term · Contact centers — Average time required to handle an interaction under the platform's definition.
In practice: Check whether AHT includes hold and after-contact work before forecasting.
Forecasting & planning · Analytics term · Planning & analytics — Computer-based methods used for tasks such as prediction or recommendations.
In practice: Review AI schedule suggestions against approved constraints.
A generated schedule still needs lawful rules, accurate inputs, and human oversight.
Time zones & calendars · Time notation · U.S. scheduling — Alaska daylight time at UTC−8.
In practice: Use AKDT only where daylight time applies for the date.
Time zones & calendars · Time notation · U.S. scheduling — Alaska standard time at UTC−9.
In practice: Check the actual Alaska location before assigning a zone.
Some Alaska locations use a different time zone.
Leave & availability · Leave term · Leave administration — A leave category commonly used for vacation and other approved personal time.
In practice: An employee requests AL for planned time away.
The linked OPM rules apply to covered federal employment.
US rules & agreements · Law or regulatory term · U.S. federal — An employer meeting the ACA employer-size criteria under IRS rules.
In practice: Apply the IRS methodology when counting full-time and equivalent employees.
Shift & roster codes · Schedule code · Employer-specific usage — Time before noon on a 12-hour clock; also used as a local morning-shift label.
In practice: Write 7:00 AM–3:00 PM instead of AM shift alone.
A shift code needs exact start and end times.
Systems & integrations · Technology term · Scheduling systems — A defined interface through which software systems exchange data or functions.
In practice: Use an API to synchronize schedule changes with another approved system.
Healthcare coverage · Role or sector term · Healthcare scheduling — A group of advanced-practice nursing roles under applicable licensing rules.
In practice: Validate role and privileges when rostering an APRN.
APRN authority and compact participation are not interchangeable with RN licensure.
Forecasting & planning · Analytics term · Planning & analytics — A family of time-series models using dependence and differencing to model patterns.
In practice: Validate an ARIMA forecast against held-out demand periods.
Contact center staffing · Contact center term · Contact centers — Average waiting time to answer included contacts under the selected metric definition.
In practice: Read the ASA denominator and exclusions before comparing queues.
Time zones & calendars · Time notation · U.S. scheduling — Atlantic standard time at UTC−4.
In practice: Puerto Rico uses AST throughout the year.
Check location; abbreviations alone can be ambiguous.
Contact center staffing · Contact center term · Contact centers — Average duration of agent talk time under a specified reporting definition.
In practice: Separate ATT from hold and wrap-up time.
Leave & availability · Leave term · Leave administration — An unauthorized absence status in federal personnel usage and some workplace policies.
In practice: Verify approval and notification records before assigning AWOL.
Do not equate a missing time punch with an unauthorized absence.
US rules & agreements · Law or regulatory term · California — A California-specific alternative-workweek concept under applicable wage-order and election rules.
In practice: Verify the applicable election and wage order before using an AWS arrangement.
Different from the federal alternative-work-schedule framework.
Federal & recurring schedules · Schedule pattern · Federal scheduling context — The federal umbrella term for flexible and compressed work-schedule arrangements.
In practice: Review whether an agency's authorized AWS is flexible or compressed.
Federal terminology does not establish private-sector scheduling rights.
Scheduling essentials · Operational term · General scheduling — Normal operating conditions used as a planning baseline.
In practice: Build the BAU roster before adding event coverage.
Scheduling essentials · Operational term · General scheduling — A plan for keeping essential operations running during disruptions.
In practice: Identify backup personnel for a site closure.
Agencies & resources · Organization · U.S. resources — Oregon's agency administering specified labor and civil-rights programs.
In practice: Use Oregon BOLI guidance for covered predictive-scheduling workplaces.
Contact center staffing · Contact center term · Contact centers — Using an external provider to perform specified business operations.
In practice: Separate in-house staffing from BPO capacity in a coverage plan.
Systems & integrations · Technology term · Scheduling systems — A policy permitting personal devices for approved work activities.
In practice: Check BYOD access, support, and privacy arrangements before a rollout.
Shift & roster codes · Schedule code · Employer-specific usage — A local code for returning to duty after an initial release from work.
In practice: Record when a call-back assignment starts and ends.
Minimum call-back pay and premiums depend on applicable rules or agreements.
US rules & agreements · Law or regulatory term · U.S. federal — A negotiated agreement that may govern hours, bidding, seniority, leave, and premiums.
In practice: Check the CBA before awarding an overtime opportunity.
Field work & fatigue · Sector term · Transportation & safety — A license required for specified commercial driving under applicable rules.
In practice: Match the driver's CDL class and endorsements to the assignment.
A valid license does not by itself establish available duty hours.
Time zones & calendars · Time notation · U.S. scheduling — US Central daylight time at UTC−5.
In practice: Confirm the location observes daylight saving for the shift date.
Federal & recurring schedules · Schedule pattern · Federal scheduling context — Hours voluntarily worked within qualifying federal flexible-schedule rules for later use.
In practice: Confirm eligibility before recording CH in a federal FWS program.
Not a general substitute for overtime pay in private employment.
Time zones & calendars · Time notation · U.S. scheduling — Time at UTC+10 used in Guam and the Northern Mariana Islands.
In practice: Check the calendar date when coordinating Guam coverage with the mainland.
The lowercase h distinguishes this label from CST.
Agencies & resources · Organization · U.S. resources — The federal agency administering Medicare and overseeing specified healthcare programs.
In practice: Consult CMS instructions for PBJ staffing reporting.
Field work & fatigue · Sector term · Transportation & safety — A vehicle classification relevant to transportation rules under specific definitions.
In practice: Determine applicable CMV coverage before applying HOS requirements.
Healthcare coverage · Role or sector term · Healthcare scheduling — A nursing-assistant designation subject to applicable training and credential rules.
In practice: Check current CNA qualifications before assigning care coverage.
Scheduling metrics · Performance metric · Planning & analytics — Handled contacts divided by the stated productive or paid hours.
In practice: Define whether CPH includes follow-up activity before setting a plan.
Also means cost per hire in HR. Avoid comparing unlike denominators.
Scheduling metrics · Performance metric · Planning & analytics — Defined recruiting costs divided by the number of hires in the period.
In practice: Separate CPH recruiting economics from contact-center productivity.
Different from contacts per hour; cost scope varies.
Time zones & calendars · Time notation · U.S. scheduling — US Central standard time at UTC−6.
In practice: Use CST with a date and US location to avoid international ambiguity.
The same letters are used for other time zones internationally.
Systems & integrations · Technology term · Scheduling systems — A plain-text tabular data format often used for schedule exports.
In practice: Export the filtered acronym reference as CSV for an onboarding sheet.
Federal & recurring schedules · Schedule pattern · Federal scheduling context — Time off credited under a legally permitted compensatory-time arrangement.
In practice: Check the governing rules before crediting CT for additional work.
CT also means Central Time. Private employers generally cannot bank time across workweeks to replace required overtime.
Time zones & calendars · Time notation · U.S. scheduling — A regional time label that follows the applicable standard or daylight time.
In practice: Include a location and date with a 7:00 AM CT start.
Also means compensatory time in some work records.
Federal & recurring schedules · Schedule pattern · Federal scheduling context — A schedule that completes the required work hours in fewer workdays under its governing rules.
In practice: A four-day pattern may compress a normal five-day requirement.
Compressed does not necessarily mean reduced total hours.
Shift & roster codes · Schedule code · Employer-specific usage — A local roster code for a daytime assignment.
In practice: A site's legend defines D as 7:00 AM–3:30 PM.
Not universal; D can mean something else on another roster.
Agencies & resources · Organization · U.S. resources — New York City's department administering specified consumer and worker protections.
In practice: Check NYC DCWP guidance for local Fair Workweek requirements.
Agencies & resources · Organization · U.S. resources — California's department overseeing specified labor and workplace programs.
In practice: Use California DIR guidance when researching state scheduling-related wage rules.
Agencies & resources · Organization · U.S. resources — California's labor-standards enforcement division, also known as the Labor Commissioner's Office.
In practice: Consult DLSE guidance for California overtime and reporting time pay.
Agencies & resources · Organization · U.S. resources — The US federal department responsible for specified labor programs and enforcement.
In practice: Use DOL resources to research federal wage-and-hour terminology.
Healthcare coverage · Role or sector term · Healthcare scheduling — A nursing leadership role involved in staffing and clinical oversight.
In practice: Route required staffing-plan review to the DON.
Scheduling essentials · Operational term · General scheduling — Restoring systems and operations after a disruptive event.
In practice: Provide a roster-access plan during a scheduling-system outage.
Time zones & calendars · Time notation · U.S. scheduling — A seasonal clock adjustment observed in some locations.
In practice: Check elapsed hours when a night shift crosses a DST transition.
The same local clock time can be skipped or occur twice.
Shift & roster codes · Schedule code · Employer-specific usage — A pay category commonly describing twice a defined rate.
In practice: Check the governing rule before applying a DT code.
Not a universal federal entitlement; applicability and rate base vary.
Field work & fatigue · Sector term · Transportation & safety — A vehicle-condition report under applicable transportation requirements.
In practice: Allow appropriate time for required DVIR-related duties.
Shift & roster codes · Schedule code · Employer-specific usage — A local roster code for an evening assignment.
In practice: Confirm the E shift's start, end, and break arrangements.
Not a nationally standardized code.
Leave & availability · Leave term · Leave administration — An employer-sponsored support resource for employees.
In practice: Provide EAP information when appropriate without recording sensitive details on a roster.
Healthcare coverage · Role or sector term · Healthcare scheduling — A hospital department providing emergency evaluation and care.
In practice: Plan ED coverage using demand, acuity, and required skills.
Time zones & calendars · Time notation · U.S. scheduling — Eastern daylight time at UTC−4.
In practice: Use EDT for applicable Eastern locations during daylight time.
Agencies & resources · Organization · U.S. resources — The federal agency enforcing specified employment anti-discrimination laws.
In practice: Check EEOC resources when reviewing an accommodation process.
Field work & fatigue · Sector term · Transportation & safety — A workplace function addressing operational safety and related risks.
In practice: Include EHS review when redesigning extended shifts.
Field work & fatigue · Sector term · Transportation & safety — A device used to electronically record specified commercial-driver duty information.
In practice: Reconcile ELD duty records with dispatch plans.
Forecasting & planning · Analytics term · Planning & analytics — A recursively weighted average with declining weight on older observations.
In practice: Smooth recent demand while preserving responsiveness to changes.
Systems & integrations · Technology term · Scheduling systems — A system coordinating core business processes and data.
In practice: Match ERP location and cost-center codes with scheduling records.
Scheduling essentials · Operational term · General scheduling — Tools employees use to view information and submit requests.
In practice: An employee uses ESS to request a shift swap.
Time zones & calendars · Time notation · U.S. scheduling — Eastern standard time at UTC−5.
In practice: Use EST only when the intended instant is on standard time.
Time zones & calendars · Time notation · U.S. scheduling — A regional time label that generally follows standard or daylight time for the date and location.
In practice: Publish 9:00 AM ET with the date and relevant city.
Do not assume ET always means UTC−5.
Systems & integrations · Technology term · Scheduling systems — An iCalendar property identifying occurrences excluded from a recurrence set.
In practice: Remove a holiday occurrence using EXDATE where supported.
US rules & agreements · Law or regulatory term · U.S. federal — Federal law addressing minimum wage, overtime, records, and youth employment.
In practice: Check FLSA coverage when reviewing time worked and overtime.
Agencies & resources · Organization · U.S. resources — The federal agency responsible for specified commercial motor-carrier safety programs.
In practice: Check FMCSA guidance before designing covered driver schedules.
US rules & agreements · Law or regulatory term · U.S. federal — Federal law providing qualifying employees leave and related job protections.
In practice: Plan coverage around approved intermittent FMLA leave.
Coverage, eligibility, qualifying reason, and notice rules apply.
Field work & fatigue · Sector term · Transportation & safety — A structured approach to managing fatigue risks in operations.
In practice: Review rest opportunities and cumulative workload in the FRMS.
A framework does not certify that a schedule is safe.
Staffing & employment · Workforce measure · General scheduling — An employment or statistical category based on the applicable definition.
In practice: Confirm the employer's FT threshold before using a staffing report.
Definitions differ among employer policies, benefit rules, and statistics.
Staffing & employment · Workforce measure · General scheduling — A measure of workload or staffing capacity relative to a stated full-time hours basis.
In practice: A 240-hour weekly plan equals 6 FTE at a 40-hour basis.
Planning FTE is not headcount or the ACA employer-size calculation. State your basis.
Staffing & employment · Workforce measure · ACA employer size — An ACA employer-size measure derived from non-full-time employees' monthly service hours.
In practice: Use IRS rules when testing applicable-large-employer status.
The ACA calculation uses specific monthly rules, not a generic weekly hours divisor.
Federal & recurring schedules · Schedule pattern · Federal scheduling context — A federal schedule arrangement with permitted flexibility around defined requirements.
In practice: An employee varies arrival time within the approved FWS rules.
FWS can also mean Federal Wage System in federal pay documents.
US rules & agreements · Law or regulatory term · State & local scheduling — Shorthand for predictable-scheduling protections in certain jurisdictions.
In practice: Check location, industry, and employer coverage before applying FWW requirements.
Local shorthand; not a single nationwide law or uniform code.
US rules & agreements · Law or regulatory term · U.S. federal — A distinct overtime calculation method subject to specific legal conditions.
In practice: Confirm eligibility before using the FWW method for a salaried nonexempt employee.
Different from fair workweek scheduling laws; not a label for any variable schedule.
US rules & agreements · Law or regulatory term · State & local scheduling — An estimate of expected work schedule or hours under a relevant scheduling framework.
In practice: Provide the required GFE where the governing local rule applies.
Contents, timing, and coverage vary by jurisdiction.
Time zones & calendars · Time notation · U.S. scheduling — A zero-offset time label often encountered in scheduling interfaces.
In practice: Check whether a system uses GMT as a zero-offset label.
Use precise time-zone identifiers for recurring local shifts.
Systems & integrations · Technology term · Scheduling systems — Satellite-based positioning used by some mobile workforce tools.
In practice: Review a mobile time record's location under the employer's approved policy.
A location signal does not establish all compensable work time.
Staffing & employment · Workforce measure · General scheduling — The number of people in a defined workforce population.
In practice: A team has 12 people even if their combined hours equal fewer FTEs.
Define whether temporary staff and employees on leave are included.
Systems & integrations · Technology term · Scheduling systems — A term for coordinated people-management processes and systems.
In practice: Connect HCM employee data with scheduling and time records.
Field work & fatigue · Sector term · Transportation & safety — Rules governing duty, driving, rest, and related limits for covered transportation workers.
In practice: Check applicable HOS rules before assigning a driver.
These rules are distinct from wage-and-hour calculations.
Scheduling metrics · Performance metric · Planning & analytics — Defined care hours divided by patient days for the same period.
In practice: State included job roles before comparing HPPD across units.
A staffing measure, not a universal legal staffing minimum.
Scheduling metrics · Performance metric · Planning & analytics — Defined staffing hours divided by resident days for the reporting period.
In practice: Review staffing role scope before interpreting a nursing-home HPRD figure.
This database does not determine applicable staffing requirements.
Systems & integrations · Technology term · Scheduling systems — The function managing people-related policies, processes, and records.
In practice: Coordinate scheduling exceptions with HR when appropriate.
Systems & integrations · Technology term · Scheduling systems — A system used to maintain employee and HR records.
In practice: Sync active employees and organizational assignments into scheduling.
Systems & integrations · Technology term · Scheduling systems — A system supporting a range of HR management processes.
In practice: Check which HRMS module owns employee availability.
Time zones & calendars · Time notation · U.S. scheduling — The Hawaii standard-time label at UTC−10.
In practice: Honolulu shift times keep the same UTC offset through the year.
Other places using similar zone names can have different observance rules.
Time zones & calendars · Time notation · U.S. scheduling — The organization maintaining the widely used time-zone database.
In practice: Use a zone such as America/New_York for recurring local schedules.
A named zone carries transition rules; a fixed UTC offset does not.
Systems & integrations · Technology term · Scheduling systems — A common extension for files carrying iCalendar event data.
In practice: Check time-zone and update behavior when importing a shift calendar.
An imported file may be a snapshot rather than a live subscription.
Healthcare coverage · Role or sector term · Healthcare scheduling — A clinical unit providing intensive monitoring and care.
In practice: Verify ICU skills and requirements before covering an open shift.
Time zones & calendars · Time notation · U.S. scheduling — A standard family for unambiguous date and time representations.
In practice: Use a dated timestamp with an offset when exchanging schedule records.
A plain date or local timestamp alone does not identify a unique instant.
Contact center staffing · Contact center term · Contact centers — An automated caller interaction system that can gather information or route calls.
In practice: An IVR change can affect the calls that reach agents.
Scheduling essentials · Operational term · General scheduling — A defined measure used to monitor an operational objective.
In practice: Track unfilled shifts alongside service quality.
Specify the formula and reporting period.
Scheduling metrics · Performance metric · Planning & analytics — Defined labor cost divided by associated revenue, multiplied by 100.
In practice: Compare labor cost and sales from the same reporting period.
Specify whether taxes, benefits, and other employment costs are included.
Systems & integrations · Technology term · Scheduling systems — A system for assigning and tracking training.
In practice: Check LMS completion records before assigning restricted tasks.
Training completion is not always equivalent to a current credential.
Leave & availability · Leave term · Leave administration — Time away from work under an employer policy or applicable law.
In practice: Track the leave dates and expected return without displaying medical details.
A LOA may be paid or unpaid and protected or unprotected.
Scheduling metrics · Performance metric · Planning & analytics — Order lines processed per defined labor or operating hour.
In practice: Match picking-line output and hours to the same warehouse activity.
Local operational metric; one order can contain multiple lines.
Healthcare coverage · Role or sector term · Healthcare scheduling — A licensed nursing role whose scope depends on applicable state rules.
In practice: Match LPN coverage to the unit's permitted duties and requirements.
Leave & availability · Leave term · Leave administration — A benefit arrangement for qualifying longer-duration disability.
In practice: Keep benefit administration separate from staffing availability decisions.
Plan terms and applicable law govern benefits and employment rights.
Healthcare coverage · Role or sector term · Healthcare scheduling — A nursing license title used in certain states for the practical/vocational nursing role.
In practice: Use the correct state title when checking LVN credentials.
Leave & availability · Leave term · Leave administration — An approved nonpay absence status, including a defined federal personnel usage.
In practice: A federal employee requests LWOP for an approved absence.
Federal rules differ from employer-specific unpaid leave policies.
Forecasting & planning · Analytics term · Planning & analytics — Average absolute deviation from a specified reference; some forecasting reports use it for absolute forecast error.
In practice: Read the report's definition before treating MAD as MAE.
MAD also denotes median absolute deviation in other statistical contexts.
Forecasting & planning · Analytics term · Planning & analytics — The average absolute difference between forecasts and actual values.
In practice: An MAE of four calls describes error in calls, not percent.
Forecasting & planning · Analytics term · Planning & analytics — The average absolute percentage forecast error over the included observations.
In practice: Check treatment of intervals with zero actual demand before using MAPE.
Undefined for zero actuals without an explicit handling rule.
Time zones & calendars · Time notation · U.S. scheduling — Mountain daylight time at UTC−6.
In practice: Check the date before converting an MDT meeting for another office.
Systems & integrations · Technology term · Scheduling systems — Authentication using more than one distinct factor category.
In practice: Protect schedule-management access with MFA where available.
Forecasting & planning · Analytics term · Planning & analytics — Methods that learn patterns from data for prediction or other tasks.
In practice: Check whether changing demand makes an ML forecast less reliable.
Shift & roster codes · Schedule code · Employer-specific usage — Overtime an employer directs an employee to work, subject to applicable restrictions.
In practice: Check industry, jurisdiction, and agreement limits before assigning MOT.
Not every employer may impose the same overtime requirements.
US rules & agreements · Law or regulatory term · U.S. federal — A written understanding that may clarify or supplement an arrangement.
In practice: Read a scheduling MOU with the agreement it supplements.
Its effect depends on its terms and governing law.
Scheduling essentials · Operational term · General scheduling — Tools managers use to review and approve workforce actions.
In practice: A supervisor checks coverage before approving a request.
Time zones & calendars · Time notation · U.S. scheduling — Mountain standard time at UTC−7.
In practice: An Arizona office may use MST while another Mountain location uses MDT.
Time zones & calendars · Time notation · U.S. scheduling — A regional time label whose offset depends on location and daylight-saving observance.
In practice: Use a city-based zone when scheduling staff in Arizona and Colorado.
Many Arizona locations do not observe daylight saving; check the exact location.
Shift & roster codes · Schedule code · Employer-specific usage — A local roster code for an overnight assignment.
In practice: Pair N with dates so payroll allocates overnight hours correctly.
Night work does not by itself establish premium-pay entitlement.
Shift & roster codes · Schedule code · Employer-specific usage — An attendance label for missing work without the expected notification.
In practice: Investigate the circumstances before classifying an absence as NCNS.
Do not automatically treat protected or emergency absences as misconduct.
Scheduling metrics · Performance metric · Planning & analytics — Defined nursing hours divided by patient days.
In practice: Report which nursing roles and worked-hour categories are included.
Patient acuity and role mix still matter; definitions can differ.
Agencies & resources · Organization · U.S. resources — CDC's institute researching occupational safety and health.
In practice: Use NIOSH fatigue resources when reviewing long-hour work patterns.
Agencies & resources · Organization · U.S. resources — A US standards and measurement agency with official time-information resources.
In practice: Use NIST time references when checking US zone abbreviations.
Healthcare coverage · Role or sector term · Healthcare scheduling — A licensure compact governing eligible multistate nursing practice.
In practice: Verify the nurse's current license and authority before cross-state assignment.
Compact participation does not make every license multistate.
US rules & agreements · Law or regulatory term · U.S. federal — Federal law governing protected concerted activity and many private-sector labor relations.
In practice: Consider labor-relations obligations when changing represented employees' schedules.
Agencies & resources · Organization · U.S. resources — The federal agency administering the NLRA for covered labor relations.
In practice: Review NLRB resources for protected concerted activity.
Shift & roster codes · Schedule code · Employer-specific usage — Availability to respond to work under specified conditions.
In practice: Document response requirements and any actual call-back work.
Pay treatment depends on the restrictions and applicable rules.
Contact center staffing · Contact center term · Contact centers — An abbreviated label for the share of defined available agent time spent handling contacts.
In practice: Confirm that OCC includes the intended talk, hold, and wrap-up time.
Report shorthand varies; occupancy is not schedule adherence.
Shift & roster codes · Schedule code · Employer-specific usage — A local code showing that no work is assigned for the indicated period.
In practice: OFF distinguishes an unscheduled day from approved paid leave.
Confirm whether any on-call obligation remains.
Scheduling essentials · Operational term · General scheduling — Learning duties while working with supervision or guidance.
In practice: Schedule a trainer and trainee on the same shift.
Training time may be compensable; assess the circumstances.
Leave & availability · Leave term · Leave administration — An availability message indicating someone is away from their usual office or communication channel.
In practice: Use OOO with a return date and contact arrangement.
OOO does not necessarily mean leave or that no work is being performed.
Agencies & resources · Organization · U.S. resources — The federal agency providing civilian federal workforce policy and guidance.
In practice: Consult OPM for federal AWS and leave terminology.
Healthcare coverage · Role or sector term · Healthcare scheduling — The location or service area for surgical procedures.
In practice: Coordinate OR staff around planned cases and on-call coverage.
Agencies & resources · Organization · U.S. resources — The federal workplace-safety agency within DOL.
In practice: Identify safety obligations when assigning work.
Shift & roster codes · Schedule code · Employer-specific usage — Hours or compensation treated as overtime under applicable rules.
In practice: Check actual weekly hours before finalizing an additional shift.
Scheduled hours and payable overtime are not always the same.
Healthcare coverage · Role or sector term · Healthcare scheduling — A licensed rehabilitation role that may appear on staffing records.
In practice: The OT assignment identifies a therapist, not overtime hours.
The surrounding column and department determine the meaning.
Scheduling metrics · Performance metric · Planning & analytics — Overtime hours divided by total worked hours, multiplied by 100.
In practice: Eight overtime hours out of 100 worked hours gives 8%.
This is a planning ratio, not an overtime pay calculation.
Healthcare coverage · Role or sector term · Healthcare scheduling — CMS's staffing data submission system for covered nursing-home reporting.
In practice: Reconcile staffing records before preparing PBJ submissions.
Reporting instructions can change; consult the current manual.
Time zones & calendars · Time notation · U.S. scheduling — US Pacific daylight time at UTC−7.
In practice: Confirm a summer Pacific shift is labeled PDT where applicable.
Leave & availability · Leave term · Leave administration — Wage-replacement or paid-leave arrangements for qualifying family reasons.
In practice: Coordinate a PFL claim with the employee's approved absence.
Pay benefits and job-protected leave may come from different programs.
Leave & availability · Leave term · Leave administration — A program or benefit covering specified family and medical absences.
In practice: Check the relevant state program before coding PFML.
Eligibility, funding, job protection, and allowed reasons vary by jurisdiction.
Systems & integrations · Technology term · Scheduling systems — Information that identifies or can be linked to an individual under the relevant definition.
In practice: Avoid including sensitive leave details on a shared roster.
Shift & roster codes · Schedule code · Employer-specific usage — Time from noon onward on a 12-hour clock; sometimes a local shift label.
In practice: Specify whether PM means an afternoon or an overnight assignment.
Use explicit dates when a shift crosses midnight.
Systems & integrations · Technology term · Scheduling systems — A system or location recording sales transactions.
In practice: Use appropriately aggregated POS demand to inform staffing forecasts.
Field work & fatigue · Sector term · Transportation & safety — Equipment used to reduce exposure to specific workplace hazards.
In practice: Verify required PPE and training for an assigned task.
Staffing & employment · Workforce measure · General scheduling — A staffing designation for work assigned as needed, especially in healthcare.
In practice: A PRN nurse picks up an available shift after credential checks.
PRN is not a guaranteed schedule or a universal employment classification.
Leave & availability · Leave term · Leave administration — Paid leave for reasons allowed by the applicable law or policy.
In practice: Check local PSL protections when handling an absence.
There is no single PSL rule that covers every US workplace.
Time zones & calendars · Time notation · U.S. scheduling — US Pacific standard time at UTC−8.
In practice: Use PST for an instant on Pacific standard time.
Staffing & employment · Workforce measure · General scheduling — An employment or statistical category for work below the relevant full-time basis.
In practice: Build a PT employee's roster within agreed availability.
Do not confuse PT with Pacific Time or physical therapist.
Healthcare coverage · Role or sector term · Healthcare scheduling — A licensed rehabilitation role that can appear on a healthcare staffing roster.
In practice: Distinguish PT therapy coverage from PT employment status.
Confirm license and role; also means part time or Pacific Time.
Time zones & calendars · Time notation · U.S. scheduling — A regional label following Pacific standard or daylight time as applicable.
In practice: Use a dated 8:00 AM PT start for a Pacific location.
Also means part time or physical therapist.
Staffing & employment · Workforce measure · General scheduling — An employee classified as part time for a specified purpose.
In practice: Include PTE hours when estimating total coverage.
Classification depends on the relevant policy or rule.
Leave & availability · Leave term · Leave administration — An employer-provided category or bank of paid absence.
In practice: Check approved PTO before assigning the employee to a shift.
PTO policies vary; paid leave and legal job protection are separate questions.
US rules & agreements · Law or regulatory term · U.S. federal — The expanded federal framework for eligible workers' pumping break and space protections.
In practice: Plan coverage for pumping breaks without replacing an individual rights assessment.
Compensability depends on the circumstances and applicable rules.
US rules & agreements · Law or regulatory term · U.S. federal — Federal law addressing reasonable accommodations for known pregnancy-related limitations.
In practice: Consider a qualifying request for additional breaks or a changed start time.
Check current EEOC guidance and applicable legal developments.
Leave & availability · Leave term · Leave administration — An adjustment evaluated under the applicable accommodation framework.
In practice: A modified start time may be considered as an RA.
Applicability is individualized; a scheduling code cannot determine entitlement.
Systems & integrations · Technology term · Scheduling systems — Assigning system permissions through defined roles.
In practice: Give supervisors access only to the teams they manage.
Shift & roster codes · Schedule code · Employer-specific usage — A scheduled nonwork day in a recurring work pattern.
In practice: The roster shows an RDO after the employee's work block.
Can also mean rostered day off; some employers use the same code for a requested day off.
Shift & roster codes · Schedule code · Employer-specific usage — A local code for a requested nonwork day.
In practice: Check approval status before treating an RDO request as unavailable time.
Distinct from a regular day off; verify the local legend.
Shift & roster codes · Schedule code · Employer-specific usage — A payroll or roster label for hours assigned to a regular category.
In practice: Review REG against actual worked hours and overtime rules.
A pay-code label does not determine legal pay treatment.
Forecasting & planning · Analytics term · Planning & analytics — The square root of the average squared forecast error.
In practice: Use RMSE when larger forecasting misses should carry more influence.
Healthcare coverage · Role or sector term · Healthcare scheduling — A licensed nursing role used in staffing and skill-mix plans.
In practice: Confirm RN credentials and assigned responsibilities before filling a shift.
Field work & fatigue · Sector term · Transportation & safety — A record of a covered driver's duty-status changes.
In practice: Review RODS when evaluating available driving time.
US rules & agreements · Law or regulatory term · U.S. federal — The rate basis used for overtime calculations under applicable wage rules.
In practice: Account for relevant compensation when determining RRP.
Not necessarily the employee's base hourly wage.
Systems & integrations · Technology term · Scheduling systems — An iCalendar property describing a recurring event pattern.
In practice: Review RRULE and exceptions before relying on a recurring shift event.
Healthcare coverage · Role or sector term · Healthcare scheduling — A clinical role providing respiratory-care services under applicable scope rules.
In practice: Check RT availability and qualifications for respiratory coverage.
Contact center staffing · Contact center term · Contact centers — Comparing current agent activity with the scheduled activity.
In practice: Review RTA exceptions before changing intraday coverage.
Contact center staffing · Contact center term · Contact centers — Monitoring operations and adjusting staffing or activities during the day.
In practice: Move training when an unexpected demand spike affects coverage.
Scheduling essentials · Operational term · General scheduling — Resuming work at an employer's office under an applicable arrangement.
In practice: Coordinate RTO days with desk and team coverage.
Also used locally for requested time off.
Scheduling essentials · Operational term · General scheduling — An employer-specific label for a request to be absent.
In practice: RTO remains pending until the request is approved.
Local usage; also means return to office. A request is not approval.
Leave & availability · Leave term · Leave administration — Resuming work after an absence, sometimes with restrictions or accommodations.
In practice: Confirm approved duties and hours before rostering an RTW employee.
RTW may also mean right to work in labor-law discussions.
Contact center staffing · Contact center term · Contact centers — A local label for how closely actual activities match scheduled activities.
In practice: Compare activity-level timing using the platform's adherence rules.
Metric shorthand and treatment of exceptions vary by platform.
Systems & integrations · Technology term · Scheduling systems — Cloud software delivered for use through a provider-managed service.
In practice: Check access and data-export arrangements for scheduling SaaS.
Contact center staffing · Contact center term · Contact centers — A local metric label for scheduled time unavailable for the planned productive activity.
In practice: Allow for breaks, training, and absences when estimating required scheduled capacity.
Not a universal abbreviation. Required coverage and scheduled hours use different denominators.
Leave & availability · Leave term · Leave administration — A leave category for qualifying health or family-related reasons.
In practice: Approved SL removes an employee from the available staffing pool.
SL also means service level in contact centers. Entitlement and allowed uses vary.
Contact center staffing · Contact center term · Contact centers — A defined measure of how often contacts meet a response-time target.
In practice: An SL report needs a time threshold, denominator, and abandonment treatment.
Also means sick leave on many employee rosters.
Contact center staffing · Contact center term · Contact centers — An agreement specifying service commitments and how performance is assessed.
In practice: Use the SLA's response-time requirement as a planning input.
Forecasting & planning · Analytics term · Planning & analytics — An average over a fixed moving window of observations.
In practice: Use a recent window to form a basic demand baseline.
Systems & integrations · Technology term · Scheduling systems — A text-message service sometimes used for schedule notifications.
In practice: Confirm how employees acknowledge an SMS shift update.
A sent message does not prove it was read or that consent requirements were met.
Healthcare coverage · Role or sector term · Healthcare scheduling — A facility category used in US healthcare administration.
In practice: Apply the relevant SNF reporting and staffing context.
Scheduling essentials · Operational term · General scheduling — Documented instructions for a repeatable workplace process.
In practice: Follow the SOP for publishing and changing weekly schedules.
A procedure does not override applicable law or an agreement.
Scheduling metrics · Performance metric · Planning & analytics — Sales divided by the defined labor hours for the same scope and period.
In practice: Divide $12,000 sales by 300 labor hours to get $40 per labor hour.
Specify scheduled versus worked hours and which workers are included.
Systems & integrations · Technology term · Scheduling systems — An authentication arrangement enabling access to multiple applications through a shared sign-in process.
In practice: Use SSO to access the approved scheduling application.
Time zones & calendars · Time notation · U.S. scheduling — Time at UTC−11 used in American Samoa.
In practice: Keep American Samoa separate from the independent nation of Samoa.
Location is essential; the two jurisdictions have very different offsets.
Leave & availability · Leave term · Leave administration — A benefit arrangement providing income replacement for eligible short-term disability.
In practice: Coordinate STD benefits with approved leave and work restrictions.
A benefit award alone does not establish the leave entitlement.
Scheduling essentials · Operational term · General scheduling — Recording when employees work and when they are absent.
In practice: Compare T&A records with scheduled start and end times.
Actual time worked can differ from the published schedule.
Shift & roster codes · Schedule code · Employer-specific usage — A placeholder indicating that a detail will be communicated later.
In practice: Notify affected employees when the TBA location is finalized.
Shift & roster codes · Schedule code · Employer-specific usage — A placeholder for an assignment detail that has not been decided.
In practice: Replace TBD with the confirmed employee or start time before publication.
A placeholder does not constitute a completed assignment.
Staffing & employment · Workforce measure · General scheduling — A locally used label for an employee engaged for a limited period.
In practice: Check a TEMP assignment's end date before publishing future shifts.
A temporary label does not determine legal employment status.
Federal & recurring schedules · Schedule pattern · Federal scheduling context — The scheduled hours and days an employee is expected to work.
In practice: Confirm the approved TOD before processing a schedule change.
Meaning and administration depend on employment context.
Scheduling essentials · Operational term · General scheduling — A request to be away from scheduled work.
In practice: Review the TOR status before filling the open shift.
Workflow abbreviation; confirm the organization's terminology.
Systems & integrations · Technology term · Scheduling systems — An iCalendar property parameter or identifier used to associate local times with a zone.
In practice: Check TZID when a recurring shift appears at the wrong local hour.
Systems & integrations · Technology term · Scheduling systems — An identifier used to distinguish an event or record within a system.
In practice: Preserve the event UID when updating a calendar entry.
Scheduling metrics · Performance metric · Planning & analytics — Output units divided by the defined hours used to produce them.
In practice: Use 600 processed units and 30 labor hours to calculate 20 UPH.
Specify whether the denominator is labor hours or elapsed process hours.
Shift & roster codes · Schedule code · Employer-specific usage — A local attendance or time-bank label for unpaid absence.
In practice: Read the UPT policy before interpreting a balance.
Employer-specific; eligibility, deductions, and protections vary.
US rules & agreements · Law or regulatory term · U.S. federal — Federal protections related to uniformed service and civilian employment.
In practice: Coordinate military-service absences and return-to-work arrangements.
Time zones & calendars · Time notation · U.S. scheduling — A global time reference used to align timestamps across locations.
In practice: Store an instant with its local zone and corresponding UTC time.
UTC does not switch for daylight saving time.
Shift & roster codes · Schedule code · Employer-specific usage — Approved or categorized time away without pay under local policy.
In practice: Check whether a UTO request overlaps protected leave.
A payroll category does not determine job protection.
Shift & roster codes · Schedule code · Employer-specific usage — Extra work offered for employees to accept voluntarily.
In practice: Offer VOT to qualified employees after checking limits and rest.
Voluntary acceptance does not remove pay or safety obligations.
Shift & roster codes · Schedule code · Employer-specific usage — An employer's offer to reduce scheduled work by agreement.
In practice: When demand falls, invite eligible employees to accept VTO.
May be unpaid; also means volunteer time off. Local rules still apply.
Shift & roster codes · Schedule code · Employer-specific usage — Time away for approved volunteer activities under an employer program.
In practice: An employee requests VTO for a community-service event.
Confirm pay status and eligibility; different from voluntary time off.
Forecasting & planning · Analytics term · Planning & analytics — Sum of absolute forecast errors divided by the sum of actual demand, expressed as a percentage.
In practice: Evaluate volume forecast error across several staffing intervals.
Undefined when total actual demand is zero; large-volume periods carry more weight.
Contact center staffing · Contact center term · Contact centers — Tools and practices supporting employee performance, development, and engagement.
In practice: Consider coaching and training capacity alongside the roster.
Scheduling essentials · Operational term · General scheduling — A work-location arrangement where duties are performed at home.
In practice: Mark WFH separately from leave or unavailability.
Remote work is work, not time off.
Scheduling essentials · Operational term · General scheduling — Coordinating staffing, schedules, time records, and related workforce processes.
In practice: Use WFM to connect a published roster with attendance.
Scheduling essentials · Operational term · General scheduling — Improving how staffing and operational processes support service and productivity.
In practice: Review staffing together with quality and service measures.
Scheduling essentials · Operational term · General scheduling — Estimating the people and skills needed to meet future demand.
In practice: Model next quarter's staffing needs before assigning individual shifts.
Agencies & resources · Organization · U.S. resources — The DOL division administering and enforcing specified wage-and-hour and leave laws.
In practice: Consult WHD guidance for hours-worked and FMLA questions.
Forecasting & planning · Analytics term · Planning & analytics — A moving average assigning different weights to included observations.
In practice: Give recent comparable periods more weight when the model calls for it.
Explore staffing and labor measures using your own numbers. Each calculation shows its formula, assumptions, and limits.
Enable JavaScript to calculate.
Planned hours ÷ full-time hours basis
Use the same time period for both inputs. This is planning FTE, not the ACA employer-size calculation.
Connect the concepts behind the shorthand. Explore twelve distinctions that help scheduling, HR, and operations teams avoid common misunderstandings.
Headcount counts people. Planning FTE converts hours using a stated basis. ACA employer-size FTE uses specific IRS monthly rules. A single hours divisor cannot answer all three questions.
PTO describes paid absence under a policy. FMLA addresses qualifying leave and job protections. STD and LTD concern income-replacement benefits. These can overlap, but one does not automatically establish the others.
A staffing report may use PT for part time, a meeting notice for Pacific Time, and a healthcare roster for physical therapist. Read the column heading and surrounding context.
VTO can mean voluntary time off or volunteer time off. RDO can be a regular day off or a requested day off. Pay status and approval are separate details that need confirmation.
Overtime is governed by applicable wage rules. Compensatory time is permitted only in particular arrangements. A roster code or an employee’s preference does not make required overtime pay disappear.
Federal alternative work schedules include flexible and compressed arrangements. California alternative workweek schedules follow a different legal framework. A 4/10 or 9/80 label alone does not establish compliance.
Fair workweek refers to certain predictable-scheduling protections. Fluctuating workweek refers to a particular overtime calculation method. The same letters describe very different subjects.
Occupancy concerns activity within defined available time. Adherence compares actual and scheduled activities. Shrinkage accounts for scheduled capacity unavailable for the intended productive work. Check each denominator.
AHT describes handling time. ASA describes waiting time to answer included contacts. Service level tests a specified response-time target. None is a substitute for the others.
ET is a regional label. EST fixes the offset at UTC−5; EDT at UTC−4. A named time zone and date are safer for recurring schedules and daylight-saving transitions.
Transportation HOS rules govern specified duty and driving limits. Wage rules determine compensable work. Fatigue management adds another operational consideration; these questions require separate checks.
An ICS file may be a one-time export. RRULE describes recurrence, EXDATE removes occurrences, and TZID identifies a time zone. Confirm whether updates actually synchronize with the source roster.
Bring employee scheduling, time and attendance, payroll, and HR together with TimeTrex.
Disclaimer: The TimeTrex USA Scheduling & Leave Management Acronym Database is provided for general information and educational use only and does not constitute legal, benefits, or employment advice. Acronyms, leave codes, and search or decoding results may vary by employer, policy, agreement, and jurisdiction. TimeTrex does not guarantee the accuracy, completeness, or currency of the information. Definitions and examples do not determine leave eligibility, accrual balances, job protection, pay entitlement, or scheduling obligations. Verify the intended meaning against current laws, applicable agreements, leave plans, and employer policies, and consult qualified professionals before approving leave or changing schedules. References and external links do not imply endorsement.
Disclaimer: The content provided on this webpage is for informational purposes only and is not intended to be a substitute for professional advice. While we strive to ensure the accuracy and timeliness of the information presented here, the details may change over time or vary in different jurisdictions. Therefore, we do not guarantee the completeness, reliability, or absolute accuracy of this information. The information on this page should not be used as a basis for making legal, financial, or any other key decisions. We strongly advise consulting with a qualified professional or expert in the relevant field for specific advice, guidance, or services. By using this webpage, you acknowledge that the information is offered “as is” and that we are not liable for any errors, omissions, or inaccuracies in the content, nor for any actions taken based on the information provided. We shall not be held liable for any direct, indirect, incidental, consequential, or punitive damages arising out of your access to, use of, or reliance on any content on this page.
Trusted By
Join our ever-growing community of satisfied customers today and experience the unparalleled benefits of TimeTrex.
Strength In Numbers
Time To Clock-In
Experience the Ultimate Workforce Solution and Revolutionize Your Business Today
Saving businesses time and money through better workforce management since 2003.
Copyright © 2026 TimeTrex. All Rights Reserved.