Time Card Calculator
Enter clock-in and clock-out times for each day and the time card calculator adds up hours worked, subtracts unpaid breaks, splits regular and overtime hours (over 40 a week, or California daily overtime), and works out gross pay.
Time card calculator
Type times any way you like: 9, 930, 9:30, 1:15 pm, 1315. Shifts that pass midnight count correctly.
| Day | Clock in | Clock out | Unpaid break (min) | Hours |
|---|---|---|---|---|
| Monday | 0:00 | |||
| Tuesday | 0:00 | |||
| Wednesday | 0:00 | |||
| Thursday | 0:00 | |||
| Friday | 0:00 | |||
| Saturday | 0:00 | |||
| Sunday | 0:00 | |||
| Monday (week 2) | 0:00 | |||
| Tuesday (week 2) | 0:00 | |||
| Wednesday (week 2) | 0:00 | |||
| Thursday (week 2) | 0:00 | |||
| Friday (week 2) | 0:00 | |||
| Saturday (week 2) | 0:00 | |||
| Sunday (week 2) | 0:00 |
Time clock calculator: how the hours are counted
For each day the calculator takes clock-out minus clock-in, subtracts the unpaid break, and shows hours and minutes (8:30) plus decimal hours (8.50), the form payroll uses. A shift from 10:00 PM to 6:00 AM counts as 8 hours, not a negative number.
- Federal overtime: under the Fair Labor Standards Act, non-exempt employees earn at least 1.5× their regular rate for hours over 40 in a workweek. Each week is counted separately, even on a biweekly time card.
- California: overtime also applies per day: 1.5× after 8 hours and 2× after 12 hours in a workday. Tick the box to apply it. (California's seventh-consecutive-day rules are not included.)
- Rounding: employers may round punch times to the nearest 5, 6 or 15 minutes if it evens out over time. With 15-minute rounding, 1–7 minutes round down and 8–14 round up (the "7-minute rule").
- Exempt staff: salaried employees paid at least $684 a week ($35,568 a year) who meet the duties tests are exempt from federal overtime. That has been the federal threshold since a federal court struck down the 2024 increase on November 15, 2024. Some states, including California, New York and Washington, set higher thresholds.
Minutes to decimal hours
Payroll systems use decimal hours. 45 minutes is 0.75 hours, so 7 hours 45 minutes is 7.75 hours.
| Minutes | Hundredths of an hour | Tenths |
|---|---|---|
| 1 | 0.02 | 0.0 |
| 2 | 0.03 | 0.0 |
| 3 | 0.05 | 0.1 |
| 4 | 0.07 | 0.1 |
| 5 | 0.08 | 0.1 |
| 6 | 0.10 | 0.1 |
| 7 | 0.12 | 0.1 |
| 8 | 0.13 | 0.1 |
| 9 | 0.15 | 0.1 |
| 10 | 0.17 | 0.2 |
| 11 | 0.18 | 0.2 |
| 12 | 0.20 | 0.2 |
| 13 | 0.22 | 0.2 |
| 14 | 0.23 | 0.2 |
| 15 | 0.25 | 0.2 |
| 16 | 0.27 | 0.3 |
| 17 | 0.28 | 0.3 |
| 18 | 0.30 | 0.3 |
| 19 | 0.32 | 0.3 |
| 20 | 0.33 | 0.3 |
| 21 | 0.35 | 0.3 |
| 22 | 0.37 | 0.4 |
| 23 | 0.38 | 0.4 |
| 24 | 0.40 | 0.4 |
| 25 | 0.42 | 0.4 |
| 26 | 0.43 | 0.4 |
| 27 | 0.45 | 0.5 |
| 28 | 0.47 | 0.5 |
| 29 | 0.48 | 0.5 |
| 30 | 0.50 | 0.5 |
| 31 | 0.52 | 0.5 |
| 32 | 0.53 | 0.5 |
| 33 | 0.55 | 0.6 |
| 34 | 0.57 | 0.6 |
| 35 | 0.58 | 0.6 |
| 36 | 0.60 | 0.6 |
| 37 | 0.62 | 0.6 |
| 38 | 0.63 | 0.6 |
| 39 | 0.65 | 0.7 |
| 40 | 0.67 | 0.7 |
| 41 | 0.68 | 0.7 |
| 42 | 0.70 | 0.7 |
| 43 | 0.72 | 0.7 |
| 44 | 0.73 | 0.7 |
| 45 | 0.75 | 0.8 |
| 46 | 0.77 | 0.8 |
| 47 | 0.78 | 0.8 |
| 48 | 0.80 | 0.8 |
| 49 | 0.82 | 0.8 |
| 50 | 0.83 | 0.8 |
| 51 | 0.85 | 0.8 |
| 52 | 0.87 | 0.9 |
| 53 | 0.88 | 0.9 |
| 54 | 0.90 | 0.9 |
| 55 | 0.92 | 0.9 |
| 56 | 0.93 | 0.9 |
| 57 | 0.95 | 0.9 |
| 58 | 0.97 | 1.0 |
| 59 | 0.98 | 1.0 |
| 60 | 1.00 | 1.0 |
Common questions
How do I calculate hours worked on a time card?
Subtract the clock-in time from the clock-out time, subtract any unpaid break, then add the days together. 8:45 AM to 5:15 PM with a 30-minute lunch is 8 hours 30 minutes minus 30 minutes = 8 hours.
How do I convert minutes to decimal hours?
Divide the minutes by 60. 15 minutes = 0.25, 30 minutes = 0.50, 45 minutes = 0.75. So 7:45 is 7.75 hours.
When does overtime start?
Under federal law, after 40 hours in a workweek for non-exempt employees, paid at least 1.5× the regular rate. California also pays daily overtime after 8 hours and double time after 12 hours in a day.
Does a lunch break count as hours worked?
Bona fide meal periods, usually 30 minutes or more when you are fully relieved of duty, are not work time under federal rules. Short breaks of about 5 to 20 minutes are counted as paid work time.
Is the 7-minute rounding rule legal?
Yes, under federal rules employers may round to the nearest quarter hour if the practice is neutral over time: 1–7 minutes round down, 8–14 round up. Some states, such as California, look closely at rounding that underpays workers.
Sources
- U.S. Department of Labor: Overtime pay (FLSA)
- eCFR: 29 CFR 785.48, rounding of time worked
- U.S. Department of Labor: Overtime rulemaking (2024 rule vacated; $684/week applies)
- California Labor Commissioner: Overtime FAQ
Related
General information, not financial, tax or legal advice. Check important numbers with the official source before acting on them.