Work time reference library

Work Hours & Clock-Out Guides

Straightforward formulas and examples for finding when you can leave, checking hours worked and handling breaks or overnight shifts.

Start with the essentials

Choose the question closest to your schedule. Each guide explains the calculation first, then links to a free tool so you can use your own times.

Calculate your schedule

Need an answer now? Use the Clock Out Calculator to add required work and unpaid breaks to a start time. If you know both ends of the shift, use the Work Hours Calculator. You can also convert timesheet values with the Decimal Hours Calculator.

Plan around lunch and flexible hours

The Lunch Break Calculator shows how a paid or unpaid break changes a shift. For weekly targets and flexible schedules, try the Weekly Hours Calculator or Flexitime Calculator.