Time Card Calculator — Weekly Hours and Overtime Pay
Enter start, end and break times for each day of the week to total hours worked, split regular and overtime hours and work out the week's pay.
An end time earlier than the start time is read as an overnight shift ending the next day. Clock changes for daylight saving time are not applied; on those two nights an overnight shift is really one hour longer or shorter.
Overtime law varies: the FLSA counts hours over 40 in a workweek; some states (such as California) also count daily hours over 8 and pay double time over 12, which this calculator does not apply.
| Day | Start | End | Break (min) | Hours | Decimal |
|---|---|---|---|---|---|
| Monday | 09:00 | 17:30 | 30 | 8:00 | 8 |
| Tuesday | 09:00 | 17:30 | 30 | 8:00 | 8 |
| Wednesday | 09:00 | 17:30 | 30 | 8:00 | 8 |
| Thursday | 09:00 | 17:30 | 30 | 8:00 | 8 |
| Friday | 09:00 | 17:30 | 30 | 8:00 | 8 |
A time card calculator turns a week of clock-in and clock-out times into the numbers payroll needs: total hours, regular and overtime hours, and pay. Enter a start time, end time and unpaid break for each day you worked; leave days off empty. Shifts that end after midnight are handled automatically, and you can choose weekly or daily overtime rules.
How to use this tool
- For each day you worked, enter the start time, end time and unpaid break in minutes.
- Leave both times empty for days off.
- Enter your hourly rate and pick the overtime rule and multiplier that apply to you.
- Read the weekly total in hours:minutes and decimal hours, and the regular, overtime and total pay.
Formula
Day hours = end − start (+ 24 h if overnight) − break · Weekly overtime = max(0, total − 40 h) · Pay = regular h × rate + overtime h × rate × multiplier
With the daily rule, every hour past 8 in a day is overtime. The combined rule counts the daily overtime first and then any remaining weekly hours over 40, so no hour is paid twice. Decimal hours are minutes ÷ 60, which is what most payroll systems expect: 7 h 45 min is 7.75 h.
Example
Working Monday to Friday 9:00–17:30 with a 30-minute lunch is 8 hours a day, 40:00 for the week. Adding a Saturday from 9:00 to 14:00 makes 45 hours: 40 regular and 5 overtime. At $20 an hour and time and a half, pay is 40 × $20 + 5 × $30 = $950.
Frequently asked questions
Are breaks paid?
Under US federal rules, short breaks of about 5–20 minutes count as paid work time, while meal breaks of 30 minutes or more when you are fully relieved of duty are usually unpaid. Enter only the unpaid break time.
Does overtime start after 8 hours a day?
Not under federal law, which uses 40 hours in a workweek. Some states, such as California, Alaska and Nevada, also have daily overtime rules — pick the daily or combined rule if one applies to you.
How do I convert 7:45 to decimal hours?
Divide the minutes by 60: 45 ÷ 60 = 0.75, so 7:45 is 7.75 hours. The table shows each day both ways.
Sources
This result is an estimate for general information only, not financial, tax, legal or medical advice. Rules and rates change and your circumstances may differ, so confirm with the official source or a qualified professional before you rely on it. You use the result at your own risk. How we check our calculators · Full disclaimer
Last updated:
Page address with these inputs: https://kakao.mobile/tools/time-card-calculator/
Cite or embed this tool
kakaoCalc. (2026, November 8). Time Card Calculator — Weekly Hours and Overtime Pay. https://kakao.mobile/tools/time-card-calculator/
“Time Card Calculator — Weekly Hours and Overtime Pay.” kakaoCalc, 8 Nov. 2026, kakao.mobile/tools/time-card-calculator/.
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