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Time Duration Calculator

Find the exact duration between two times — with overnight and multi-period support.

Enter times

Common Uses of a Time Duration Calculator

A time duration calculator is useful for timesheets, shift planning, overtime checks, travel schedules, project logging, and workout tracking. Many users search for hours between two times or elapsed time when a task crosses midnight.

Overnight Time Calculations

If an end time is earlier than the start time, the calculator treats it as an overnight span. That makes it useful for night shifts, airport schedules, and any activity that starts on one day and ends after midnight.

Common Questions

How do I calculate time between two times?+

Subtract start time from end time and normalize hours, minutes, and seconds for a readable elapsed duration.

Does this handle overnight shifts?+

Yes. If end time is earlier than start time, the calculator treats it as crossing midnight.

Can I use this for timesheets?+

Yes. It is useful for work shifts, overtime checks, and payroll time window verification.

Why include seconds in the result?+

Seconds improve precision for logs, sports timing, and technical tracking use cases.