Time duration · instant result

Time Duration Calculator

Find the exact time between two clock times. See hours, minutes, seconds, decimal hours, and total minutes, with overnight timing handled automatically.

Instant calculation24Overnight awarePRuns locally

Calculate time between two clock times

Enter a start and end time and the calculator measures the elapsed duration. If the end time is earlier than the start time, it is treated as occurring the following day, which makes overnight shifts and late-night timing straightforward.

Hours, minutes, seconds, and decimal hours

The same duration is shown in several formats so you can use the result for scheduling, payroll-time calculations, project tracking, or general time math without converting it again elsewhere.

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