Measure a period that crosses midnight or several days
Full dates let you calculate longer periods without guessing how many midnights fall between the times. The result shows elapsed time as a duration and as decimal hours.
The input uses this device's local time zone. Use the time zone converter for another location or a repeated hour during a clock change. The finish must be on or after the start.
How to use this tool
- Enter the starting date and time.
- Enter the finishing date and time.
- Read the elapsed duration and the equivalent hours or days.
Example
From Monday at 18:00 to Tuesday at 09:00 is 15 hours when no clock change falls between them. That is 0.625 of a 24 hour day.
Common questions
Are the days calendar days?
The days result divides elapsed hours by 24. For the number of calendar dates between two days, use the date calculator.