intltime

Clock-time arithmetic

How long was that?

Elapsed

8h

30m

09:00 → 17:30

That's 8.50 decimal hours — 30,600 seconds.

Inputs

Two times, or a time and a duration.

Overnight wrap is handled automatically — if the end time is earlier than the start time, we treat it as the next day. For work-hour totals with break deductions, use the hours calculator.

Three quick examples

The math nobody wants to do in their head.

  • 22:00 → 06:00 · an eight-hour night shift that wraps overnight.
  • 14:30 + 1h 45m · your meeting ends at 16:15.
  • 19:30 → 21:55 · two hours and twenty-five minutes — almost exactly a feature film.

Other tools

More small things that do one thing.

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