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🗒Time card calculator

✓ Tested & verified Updated: How this works

Weekly time card

DayInOutBreakTotal
Monday —

Week total

—h:mm

Overtime follows the US federal rule — anything past 40 hours in a week, at time and a half.

  • Decimal hours—
  • Regular—
  • Overtime—
  • Days—
  • Breaks—
  • Pay—

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How is a weekly time card worked out?

The TimerPlan time card calculator takes each day separately — in, out, minus that day’s unpaid break — applies any rounding per day, and only then adds the week together and splits it at forty hours into regular and overtime. That order matters: rounding a weekly total instead of each shift produces a different number, and so does subtracting one break from the week.

Overtime follows the US federal rule of time and a half beyond forty hours in a workweek. It is the only rule built in, because everything past it — daily overtime in California, contractual rates, rules outside the US — varies, and a calculator that guessed would be inventing numbers.

Totals appear in h:mm and decimal hours, and the regular and overtime hours are shown separately so a different multiplier can be applied by hand where local rules need one.

Rounding options, and what each is for:

SettingStepWhere it is used
None—The truthful total; check any policy against it
5 minutes0.083 hFine-grained systems
6 minutes0.1 hUS payroll working in tenths of an hour
15 minutes0.25 hThe traditional quarter-hour time card

Add or remove days with the buttons; a fortnight is simply more rows, though the forty-hour overtime split only makes sense on a single week.

For one day rather than a week — including a repeat count and a rate — the hours calculator is quicker. For the plain gap between two clock times, use the time duration calculator, and for the arithmetic of adding a length to a start time, the time calculator. If shifts are logged as they happen rather than recalled at the end of the week, the weekly timesheet log in time plans keeps them.

Frequently asked questions

Where does the forty-hour overtime threshold come from?

The Fair Labor Standards Act, which requires at least one and a half times the regular rate for hours beyond forty in a workweek for covered, non-exempt employees. It is a weekly test rather than a daily one at federal level, so four ten-hour days are forty hours and no overtime federally. Several states go further — California pays daily overtime past eight hours — and those are deliberately not assumed here.

Is rounding to the quarter hour legal?

In the US, yes, provided it does not systematically favour the employer: the rule permits rounding to the nearest quarter hour as long as over time it averages out. Rounding always down is not rounding, it is unpaid work. The calculator rounds to the nearest step rather than down, and defaults to no rounding at all, because a total that has not been rounded is the one to check any policy against.

Why round to six minutes?

Because six minutes is exactly a tenth of an hour, so the decimal figure comes out to one decimal place with nothing recurring. It is the tidiest rounding for payroll systems that work in decimal hours, and it is why so many US time cards use tenths rather than quarters.

How should unpaid breaks be recorded?

As minutes on the day they were taken. A break long enough to be genuinely off duty — normally thirty minutes or more — is unpaid under US federal rules, while short rest breaks of five to twenty minutes are paid and should not be entered here. A shift with two separate breaks gets the sum of both in that row.

Can I use this for invoicing rather than payroll?

Yes, and the decimal figure is the one to use — invoicing at 7.30 for a 7:30 day underbills by twelve minutes. Set rounding to none, leave the overtime split as it falls, and take the decimal total. If the work spans more than a week, add rows and read the total rather than the split, since a forty-hour threshold has no meaning across two weeks.

How this works

Each row is calculated on its own: both times are parsed to minutes past midnight, the difference is taken forwards so an overnight shift counts correctly, the break for that row is subtracted, and any rounding step is applied to that day’s figure. The week is the sum of those rows, which is why rounding and breaks behave the way payroll expects rather than the way a single weekly subtraction would. The total is split at forty hours into regular and overtime, following the Fair Labor Standards Act’s weekly test; overtime pay, when a rate is given, is one and a half times the rate on those hours. Every total is produced in h:mm and in decimal hours from the same minute count, so the two can never disagree. Nothing is stored on your device, and no row leaves the page.

Worked example

With Round each day to No rounding 5 minutes 6 minutes (tenth of an hour) 15 minutes (quarter hour) No rounding, this page works out — h:mm. Overtime follows the US federal rule — anything past 40 hours in a week, at time and a half.

Sources:

What a timesheet has to survive

Different breaks on different days. A weekly break field cannot express Tuesday.

Shifts across midnight. Entered as they happened; counted forwards, not negatively.

Two forms of the total. The clock form to check against your memory, the decimal form to type into the system.