Time Card Calculator
Add up the hours on a time card: start, end and break for each day, weekly total in hours and minutes and in decimal hours, and the gross pay. Overnight shifts, split shifts and a second week for biweekly pay are covered.
Your time card
Type 9:00 AM, 9am, 17:30 or 1730. An end time before the start ends the next day.
Pay and rounding
Gross pay before tax and deductions.
Time and a half for hours over 40 in each week. For shift differentials, 8/80 and state daily rules, use the overtime calculator.
Rounds each start and end time before adding, as some time clocks do.
Total hours
0:00
- Decimal hours
- 0.00
- Regular
- 0:00
- Overtime
- 0:00
The time card is worked out in your browser and ParrotNotes does not store it. Your entries are kept in this browser so they are still here next time; Clear removes them.
How to calculate hours worked
Work in minutes and convert at the end. For each day: end time minus start time, minus any unpaid break. A day from 8:12 AM to 4:57 PM is 8 hours 45 minutes; take off a 30-minute lunch and it is 8 hours 15 minutes. Add the days to get the week: five days of 8:15 is 41 hours 15 minutes.
Payroll usually wants decimal hours, so divide the minutes by 60: 41 hours 15 minutes is 41.25 hours. Multiply by the hourly rate for gross pay: 41.25 × $18 = $742.50 at straight time. If the week goes past 40 hours, the hours over 40 are paid at time and a half, which the simple overtime switch works out.
Minutes to decimal hours
Divide the minutes by 60. The multiples of 6 minutes come out as exact tenths, which is why many time clocks round to 6-minute steps.
| Minutes | Decimal hours | Minutes | Decimal hours |
|---|---|---|---|
| 5 | 0.08 | 35 | 0.58 |
| 6 | 0.10 | 36 | 0.60 |
| 10 | 0.17 | 40 | 0.67 |
| 12 | 0.20 | 42 | 0.70 |
| 15 | 0.25 | 45 | 0.75 |
| 18 | 0.30 | 48 | 0.80 |
| 20 | 0.33 | 50 | 0.83 |
| 24 | 0.40 | 54 | 0.90 |
| 25 | 0.42 | 55 | 0.92 |
| 30 | 0.50 | 60 | 1.00 |
| 35 | 0.58 | ||
| 36 | 0.60 | ||
| 40 | 0.67 | ||
| 42 | 0.70 | ||
| 45 | 0.75 | ||
| 48 | 0.80 | ||
| 50 | 0.83 | ||
| 54 | 0.90 | ||
| 55 | 0.92 | ||
| 60 | 1.00 |
Values that do not divide evenly are rounded to two places, as on most pay stubs.
Breaks, split shifts and overnight shifts
Enter only unpaid time in the break column. Under federal rules, short rest breaks of about 5 to 20 minutes are paid work time; a meal break of 30 minutes or more when you are fully off duty is not. If you clock out and back in, for a split shift or an unpaid lunch you punch for, turn on Split shifts and use the second start and end instead.
For a night shift, type the times as they are, such as 7:00 PM to 7:30 AM. An end time earlier than the start means the next morning, and the day's line shows "next day" so you can check. A bare end time like 5 after a morning start is read as 5 PM; type 5 AM or 05:00 if you mean the early morning.
Time clock rounding rules
The Department of Labor's rule on time clocks, 29 CFR 785.48(b), accepts the long-standing practice of recording start and stop times to the nearest 5 minutes, tenth of an hour (6 minutes) or quarter hour (15 minutes), provided the rounding averages out so employees are paid for all the time they actually work. Rounding to the nearest quarter hour means 8:07 becomes 8:00 and 8:08 becomes 8:15.
A policy that always rounds in the employer's favor, for example rounding every clock-in up and every clock-out down, is not neutral and can leave you short. Set Round punches to your employer's increment and compare the result with the unrounded total over a few weeks. Some states set stricter rules.
Weekly and biweekly totals, and overtime
Overtime under the Fair Labor Standards Act is counted per workweek, not per pay period: a biweekly check with 45 hours in week one and 35 in week two has 5 overtime hours, even though the two weeks add up to 80. Add week 2 and the calculator works out overtime for each week on its own.
The overtime here is simple weekly overtime: hours over 40 at 1.5 times the hourly rate. Shift differentials change the regular rate, hospitals may use the 8/80 system, and some states add daily overtime; those rules are in the overtime calculator.
Night differentials, 8/80 or double time? Use the overtime calculator for the full FLSA rules.
Gross pay before tax and deductions. The calculator follows the numbers you enter; your employer's policy, your contract and state law decide what is paid. This is a calculator, not legal advice.
Sources, checked September 2026:
More on your working week: Time management for nurses, Charge nurse duties, Construction daily report, What an outside sales rep does.
The hours are on the card. What happened in them is not.
ParrotNotes turns a two-minute voice note at the end of a shift or a day in the field into a written note and summary on your phone, with 100 free minutes a month.
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