Time Duration Calculator

Calculate the duration between two times with optional break minutes and next-day handling in one focused browser tool.

Time Duration Calculator

Calculate the duration between two times with optional break minutes and next-day handling.

Calculate shift length, meeting time, and schedule spans

Use this calculator when you need to know the duration between a start time and end time, especially for work shifts, payroll prep, appointments, travel plans, and break-adjusted schedules.

A time duration calculator helps you calculate the difference between two times in hours and minutes, with optional break deduction and overnight handling.

If you leave this off and the end time is earlier than the start time, the calculator treats it as an overnight span automatically.

Choose a start time and end time to calculate the duration.

Calculated duration

Review the main time span first, then compare the total minutes, decimal hours, and break handling.

Select two times to calculate the duration.

The result will show the full time span, total minutes, decimal hours, and break handling.

How to use the time duration calculator

  1. Choose the start time and end time you want to compare.
  2. Enter break minutes if part of the span should be subtracted from the total.
  3. Turn on the next-day option when the end time belongs to the following day.
  4. Click Calculate to review the duration, total minutes, and decimal hours.
  5. Use Example to load a sample shift or Clear to reset the calculator.

Time duration calculator examples

  • 09:00 to 17:30 with a 30-minute break for a workday total

  • 09:00 to 17:30 work hours calculator

  • 22:15 to 06:45 for an overnight shift duration

  • 13:00 to 14:45 when planning meeting time and available breaks

What this time duration calculator does

This tool calculates the duration between two times and shows the answer as hours and minutes, total minutes, and decimal hours. It also lets you subtract break minutes so the result reflects actual working or scheduled time.

When a time duration calculator is useful

A focused time duration calculator is useful when you need to total shift hours, estimate meeting length, compare appointment windows, or check how much time remains after a planned break. It is faster and clearer than counting blocks of time manually.

How overnight time spans are handled

If the end time is earlier than the start time, the calculator can treat the result as an overnight span. You can also turn on the explicit next-day option when both times are the same but the duration should cover a full-day shift.

Time duration calculator FAQs

How many hours between two times?

Enter the start time and end time to calculate the duration in hours and minutes. If needed, you can also subtract break minutes or treat the end time as the next day.

Can I subtract break time from the result?

Yes. Enter break minutes and the calculator subtracts them from the full time span before showing the final duration.

Does this work for overnight shifts?

Yes. If the end time is earlier than the start time, the tool can treat it as the next day. You can also turn on the next-day option directly.

What happens if break minutes are longer than the time span?

The tool shows a clear error instead of returning a misleading negative or zero result.

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