Time Clock Calculator
Total one or more clock-in and clock-out periods for a day. Split shifts and overnight periods are supported, with an optional unpaid break.
How to total time clock entries
Add each clock-in and clock-out period for the day. The calculator finds each period's elapsed minutes, totals the periods, then subtracts the optional unpaid break once.
Worked time = sum of clocked periods − unpaid break
Split-shift example
| Period | Clock times | Duration |
|---|---|---|
| Morning | 9:00 AM–12:30 PM | 3 hr 30 min |
| Afternoon | 1:15 PM–5:45 PM | 4 hr 30 min |
| Total | Two clocked periods | 8 hr (8.00) |
Because lunch is already represented by the gap between periods, no additional lunch deduction is needed.
Avoid double-counting breaks
If you clocked out and back in for lunch, the gap is already excluded: use two periods and leave the extra break at zero. Use the break field only when the punch record is continuous and a fixed unpaid break still needs to be removed. Review overlapping periods and missing punches before using the total.
Overnight period handling
When a clock-out is earlier than its clock-in, that period is treated as ending the next day. An unpaid break cannot be longer than the combined clocked time. For multiple days and a weekly overtime split, use the Time Card Calculator.
Frequently asked questions
Should lunch be a separate clock period?
If you clocked out and back in for lunch, use two periods. If the clock record remains continuous, enter a fixed unpaid lunch in the break field.
How do I total an entire week?
Use the Time Card Calculator for daily rows, weekly totals, overtime, and estimated pay.
Can a period cross midnight?
Yes. A clock-out earlier than clock-in is treated as the next day for that period.
Does the calculator detect overlapping periods?
Review the periods against your source record before using the result. Separate rows are totaled as entered, so overlapping intervals can count the same time twice.