Time Card Calculator

A weekly time card is just seven daily shifts summed together. Each day reduces to one question — how long was the worker on the clock, minus unpaid time — and the week is the sum of those. Two ideas do all the work.

Four steps turn raw clock times into a payable weekly total.

1. 1

   Convert each clock time to minutes

   Multiply the hour by 60 and add the minutes. Do this for both the clock-in and the clock-out so they are on the same scale.

   9:00 → 540 17:30 → 1050
2. 2

   Subtract in from out — adjust for midnight

   The shift length is out − in. If the out time is smaller, the shift crossed midnight, so add 1440 minutes (24 hours) to it first.

   1050 − 540 = 510 min
3. 3

   Take off the unpaid break

   Subtract any unpaid lunch or break from the shift length. Paid breaks stay in.

   510 − 30 = 480 min
4. 4

   Sum the week and divide by 60

   Add every day, then divide by 60 for hours. Anything past 40 in the week is usually overtime.

   2250 ÷ 60 = 37.50 hrs

The same procedure handles a normal day, a graveyard shift, and a week that runs into overtime. Switch tabs to see each computed step.

Time cards live at the seam between the clock and the paycheck, and small conventions there move real money.

The conversion every time card needs: how a count of minutes becomes the decimal of an hour that payroll expects. Switch the step to see every minute, every five, or just the quarter-hours.

A handful of conventions cause most time-card errors and pay disputes.

The words that show up on a time card and what they mean.

A time card is a weekly payroll record. If you only need one shift or one elapsed span, use the smaller calculator so the answer stays focused.

Common questions