Timesheet Hours Calculator

Two ways to use it. If you know your clock times, use the first calculator: enter start and end times and your unpaid lunch or break minutes for each day, and it works out the hours for you. If you already know each day's hours, use the second one. Both total your week in decimal and hours:minutes, and split pay into regular and overtime hours using the weekly threshold you set.

From clock times, with a lunch break

From daily hours

How it works

In clock-times mode, each day's hours = (end time − start time) − unpaid break minutes. An end time earlier than the start time is treated as the next day, so overnight shifts (22:00 to 06:30, say) work correctly. Decimal hours = hours + minutes ÷ 60: 7 hours 45 minutes is 7.75.

Total hours = the sum of all seven days. Regular hours = total up to the threshold. Overtime hours = any hours above the threshold. Gross pay = (regular hours × rate) + (overtime hours × rate × multiplier).

Worked example

Clock times: Monday to Friday, 9:00 to 17:30 with a 30-minute unpaid lunch each day. Each day spans 8 hours 30 minutes, minus the 30-minute break, which is exactly 8 hours a day and 40 hours for the week. At $20 an hour that is $800 gross, with no overtime.

Daily hours: Monday to Friday at 8 hours plus 5 hours on Saturday is 45 hours. At $20 an hour with a 40-hour threshold and a 1.5x multiplier: regular pay is 40 × $20 = $800, overtime pay is 5 × $20 × 1.5 = $150, so gross pay for the week is $950.

Overnight shifts: Monday to Thursday nights, 22:00 to 06:30, with a 30-minute unpaid break each night. Each shift spans 8 hours 30 minutes across midnight, minus the break, which is exactly 8 hours a night and 32 hours for the week. At $18 an hour that is $576 gross, with no overtime.

Paid vs unpaid breaks

The calculator subtracts only the break minutes you mark as unpaid, so it helps to know which breaks usually count as which. Under US federal rules (the Fair Labor Standards Act), short rest breaks of about 5 to 20 minutes are generally paid time and should not be deducted from your hours. A meal break of 30 minutes or more can be unpaid, but only when you are completely relieved of duty; if you are answering calls or doing any work through it, it is generally paid time. Some states and contracts set stricter rules than the federal baseline. This is general information, not legal advice; your employer's policy and local rules decide your case.

Frequently asked questions

How do I convert minutes to decimal hours?

Divide the minutes by 60. 15 minutes is 0.25 hours, 30 minutes is 0.5, 45 minutes is 0.75. This calculator accepts decimals, so enter 7.5 for seven and a half hours.

Does overtime always start after 40 hours in a week?

No. 40 hours is a common weekly threshold, for example under US federal rules for many workers, but daily overtime rules, different thresholds and contract terms exist. Set the threshold field to the rule that applies to you and treat the result as an estimate.

How do I deduct a lunch break from my hours?

Use the clock-times calculator at the top of this page. Enter your start and end times and the break in minutes (30 for a half-hour lunch). The calculator subtracts only unpaid break time. If part of your break is paid, enter only the unpaid part.

Does it handle overnight shifts?

Yes. If the end time is earlier than the start time, the calculator treats the end as the next day. A shift from 22:00 to 06:30 with a 30-minute break counts as 8 hours.

Are lunch breaks paid or unpaid?

It depends on the break and the rules that apply to you. Under US federal rules, short rest breaks of about 5 to 20 minutes are generally paid, while a meal break of 30 minutes or more can be unpaid if you are completely relieved of duty. Enter only your unpaid break minutes in this calculator; see the Paid vs unpaid breaks section above for more detail.

This calculator gives an estimate for planning. Overtime rules vary by country, state and contract. See the disclaimer.