How do I calculate time duration overnight?

If you enter an end time that is earlier than your start time (for example, 10:00 PM to 2:00 AM), our calculator automatically assumes the end time is on the next day and calculates the correct overnight duration.

Does this handle both 12-hour and 24-hour formats?

Yes, you can input times using your device's native time picker (which may be 12-hour or 24-hour based on your settings). The result is calculated in total hours and minutes.

Time Calculator

Time Duration Calculator

Find the exact number of hours and minutes between a start time and an end time.

Time Duration Calculator

Calculate the hours and minutes between two times.

Start time

9:00 AM

End time

5:00 PM

Time Duration

8 hours 0 minutes

Total minutes: 480

Decimal hours: 8.00

Frequently asked questions

How do I calculate time duration overnight?: If you enter an end time that is earlier than your start time (for example, 10:00 PM to 2:00 AM), our calculator automatically assumes the end time is on the next day and calculates the correct overnight duration.
Does this handle both 12-hour and 24-hour formats?: Yes, you can input times using your device's native time picker (which may be 12-hour or 24-hour based on your settings). The result is calculated in total hours and minutes.

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