How do I calculate hours between two times?

Subtract the start time from the end time. For 09:00 to 17:30 that is 8 hours 30 minutes; subtracting a 30-minute break leaves 8 hours.

What about overnight shifts?

If the end time is earlier than the start time (e.g. 22:00 to 06:00), the calculator assumes the shift crosses midnight and adds 24 hours, giving 8 hours.

Why convert to decimal hours?

Payroll systems often use decimal hours — 8 hours 30 minutes is 8.5 hours. The 'Total hours' output gives this directly.

Time Duration Calculator

Free time duration calculator. Enter a start and end time (and an optional break) to get the elapsed time as hours and minutes, total hours and total minutes. Handles overnight shifts that cross midnight.

Calculate the hours and minutes between a start and end time, minus breaks.

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