Hours Between Times Calculator
Compute hours and minutes between two HH:MM times, handling overnight wrap.
Result
Duration
8h 30m
8.50 decimal hours.
- Start09:00
- End17:30
- Total minutes510
- Hours8
- Remaining min30
- Decimal hours8.5000
Step-by-step
- Convert both times to minutes-from-midnight.
- End − Start = 510 min.
- Result: 510 min = 8h 30m = 8.50 decimal hours.
How to use this calculator
- Enter start and end as HH:MM (24-hour format).
- Read duration.
About this calculator
Time-of-day arithmetic with overnight handling. 09:00 to 17:30 is 8h 30m. 22:00 to 06:00 is 8h (overnight: end is "earlier" but represents the next day). Use for shift duration, bedtime intervals, etc.
Frequently asked
If end < start (in minutes-from-midnight), 24 hours is added. So 22:00 to 06:00 = 8 hours, not -16.
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