QuickFreeTools

Online Time Duration Calculator

Calculate the duration between two times (e.g. start and end time).

Frequently Asked Questions

What time format should I use?
Use 24-hour format HH:MM or HH:MM:SS (e.g. 09:00, 17:30). Or 12-hour with AM/PM if the tool supports it.
What if end is before start?
The tool assumes end is on the same day; if end < start, duration may be negative or wrap to next day depending on implementation.
Is the result in hours or minutes?
Result is typically shown in hours and minutes (e.g. 8h 30m).

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