Time Card Calculator
Add up your weekly time card: daily clock-in, clock-out, and breaks — with overtime and gross pay.
Last reviewed: July 2026Quick Answer
A time card calculator adds up your hours for the week from each day's clock-in, clock-out, and break times, then splits the total into regular and overtime hours. Fill in your week above — days you didn't work can stay blank — to get weekly totals and gross pay. Under the federal FLSA, overtime starts after 40 hours in a workweek.
How the Time Card Calculator Works
Each day is calculated independently: the calculator subtracts the clock-in time from the clock-out time, treats an end time at or before the start time as an overnight shift by adding 24 hours, then subtracts that day's unpaid break. Days with a blank clock-in or clock-out count as zero. The seven daily results are added into a weekly total, which is split into regular hours (up to the overtime threshold) and overtime hours (everything above it).
With the default week — Monday through Friday, 9:00 AM to 5:30 PM with a 30-minute unpaid lunch — each day is 8.00 hours and the weekly total is 40.00 hours, exactly at the threshold, so there is no overtime. Add a Saturday shift from 8:00 AM to 12:00 PM with no break and the total becomes 44.00 hours: 40 regular plus 4 overtime. At $20 per hour with a 1.5× multiplier, that week grosses $800 regular pay plus $120 overtime pay, or $920.
Weekly vs. Daily Overtime
The federal Fair Labor Standards Act entitles most nonexempt employees to overtime at one and a half times the regular rate after 40 hours in a workweek — a weekly test, which is what this calculator models. Some states layer daily rules on top: California, for example, requires daily overtime after 8 hours in a workday and double time after 12. If you work in a daily-overtime state, treat this calculator's split as the federal floor, not the final payroll answer.
Time Card Rounding and the 7-Minute Rule
This calculator does not round — it uses the exact minutes you enter. Many employers, however, round punches to the nearest quarter hour. Under the common quarter-hour convention, the first 7 minutes of a segment round down and minutes 8 through 14 round up, which is where the "7-minute rule" name comes from. Federal regulation 29 CFR 785.48 accepts rounding only when it averages out over time and does not systematically underpay employees for time actually worked.
| Punch minutes | Rounds to |
|---|---|
| :00 – :07 | :00 |
| :08 – :22 | :15 |
| :23 – :37 | :30 |
| :38 – :52 | :45 |
| :53 – :59 | next hour |
Keeping Time Records
The FLSA requires employers to keep records of the hours nonexempt employees work each day and each workweek. Keeping your own copy of a completed time card — even a screenshot or printout of this worksheet — gives you something to compare against your pay stub. If the numbers disagree, the daily detail makes it much easier to find where.