Time card calculator: how many hours did you work?
To total a time card, take each day’s end time minus its start time, subtract unpaid breaks, and add the days together. Monday to Friday from 9:00 AM to 5:30 PM with a 30-minute unpaid lunch is 8.00 hours a day and 40.00 hours a week. At $20 an hour that is 40.00 h × $20.00 = $800.00, all regular time under the federal 40-hour rule, which starts overtime only after the 40th hour.
Enter the start, end and unpaid break for each day you worked. This hours calculator shows each day in decimal hours and the total for the week; add an hourly rate to see pay as well.
Your pay for the week
How is a 9-to-5:30 week calculated?
| Day | Start | End | Unpaid break (min) | Hours |
|---|---|---|---|---|
| Monday | 09:00 | 17:30 | 30 | 8.00 h |
| Tuesday | 09:00 | 17:30 | 30 | 8.00 h |
| Wednesday | 09:00 | 17:30 | 30 | 8.00 h |
| Thursday | 09:00 | 17:30 | 30 | 8.00 h |
| Friday | 09:00 | 17:30 | 30 | 8.00 h |
| Total hours | 40.00 h | |||
- 40.00 h × $20.00 = $800.00
Total$800.00
Hours are rounded to two decimals; amounts use the exact time.
Each day runs 8 hours 30 minutes from start to end. The 30-minute unpaid lunch comes off, which leaves 8.00 hours. Five days make 40.00 hours. With a rate, pay is hours × rate; hours over 40 in the week are paid at ×1.5 under the federal rule.
How do I convert minutes to decimal hours?
Divide the minutes by 60. Time cards and payroll show time in decimal hours, so 8 hours 15 minutes is 8.25 hours, not 8.15. The calculator adds up exact minutes and rounds to two decimals only when it shows a number.
| Minutes | Decimal hours |
|---|---|
| 5 minutes | 0.08 |
| 6 minutes | 0.10 |
| 10 minutes | 0.17 |
| 15 minutes | 0.25 |
| 20 minutes | 0.33 |
| 30 minutes | 0.50 |
| 40 minutes | 0.67 |
| 45 minutes | 0.75 |
| 50 minutes | 0.83 |
How are breaks, overnight shifts and rounding counted?
- Unpaid breaks come off the shift. Enter only unpaid time, such as a 30-minute lunch. Under federal rules, short rest breaks of 5 to 20 minutes are paid work time, so leave them in.
- Shifts past midnight need no special step: enter the end time as the clock shows it. 10:00 PM to 6:00 AM is 8 hours, counted on the day the shift started.
- Rounding is optional. Some employers round clock-in and clock-out times; the calculator can round each start and end to the nearest 5, 6 or 15 minutes, and a time exactly halfway rounds up. With no rounding, it counts to the minute.
Does the time card calculator include overtime?
Only when you enter a rate. Then it uses the federal rule: hours over 40 in a workweek at ×1.5 (see the Department of Labor’s overtime page). For California’s daily rules under Labor Code section 510 or your own threshold, use the overtime calculator or the California overtime calculator.
What does this calculator not cover?
- More than one week. It adds up one week. For a two-week pay period, total each week on its own: for most employees, overtime is counted per workweek, not per pay period.
- Hospital and nursing-home 8-and-80 schedules. The 14-day period under FLSA section 7(j), with overtime after 8 hours a day and after 80 hours in 14 days, is not applied.
- Shifts across the end of the week. Under the FLSA each workweek stands alone (29 CFR 778.104), so the hours of a shift that crosses the end of the workweek count in the week they were worked. The calculator puts the whole shift on the day it starts.
- The seventh-day rule. California’s rule for the seventh consecutive day of work in a workweek is not applied.
- A weighted-average regular rate. One hourly rate is used for the whole week; the FLSA averages pay across rates when you work at more than one.
- Other states. Pay follows the federal rule only; California’s and other states’ daily rules are not applied.
- The night the clocks change. Times are clock times without a time zone, so a shift that runs through a daylight saving change is off by one hour.
Calculations are estimates to help you check your pay. They are not legal, payroll or tax advice.
Can Hourio keep my time card for me?
Hourio is an iPhone app that keeps your time card as you work: tap Start when a shift begins and Stop when it ends, and add a break when you take one. It totals hours and pay for every pay period, and weekly overtime is free in full: any threshold and multiplier, or none. CSV timesheets are free too. PDF timesheets and daily overtime, including the California preset, are part of Pro at $19.99 a year or $39.99 once. The pricing page lists what is free and what is Pro.
Coming soon to the App Store