Calculate hours between two times

Find the gross wall-clock interval between two HH:MM values, treating an equal or earlier end as the next day.

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ToolHours Between Two Times Calculator
Input
Output
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Preview

How it works

Both clock readings become minutes since midnight; a zero or negative difference receives 1,440 minutes before quotient and remainder yield hours and minutes. Decimal hours round that same minute total to two places.

  • The next-day rule lets one pair express an overnight shift.
  • Dates, seconds, timezones, and breaks are outside this two-clock-value calculation.

Worked example

A night shift
Clocking on at 22:00 and off at 06:00
Input
											Start time: 22:00
End time: 06:00
Output
												Hours: 8
Minutes: 0
Total minutes: 480
Total hours decimal: 8
Duration: 8h 0m

When to use this

Night shifts use gross clock spans, same-zone overnight travel gets a rough duration, and room bookings compare times less than one day apart.

Edge cases

  • 22:00 to 06:00 is eight hours across midnight.
  • 09:00 to 09:00 is defined as 24 hours rather than zero.
  • A daylight-saving or timezone change is ignored, so this is wall-clock arithmetic rather than guaranteed elapsed time.