Time Duration Calculator
Calculate the exact duration between two dates and times in days, hours, minutes, and seconds.
About this tool
What is Time Duration Calculator?
Calculate elapsed time between a starting date and time and an ending date and time. The tool shows a combined duration in days, hours, minutes, and seconds as well as total hours, total minutes, and total seconds.
How to use
Get your result in a few steps
- 1
Enter the starting date and time.
- 2
Enter the ending date and time.
- 3
Click 'Calculate'.
- 4
Review the duration in days, hours, minutes, seconds, and total-unit formats.
Frequently asked questions
Questions about Time Duration Calculator
What does the Time Duration Calculator measure?
It measures the elapsed time from the starting date and time to the ending date and time.
Can the result span multiple days?
Yes. The result can include any number of whole days plus remaining hours, minutes, and seconds.
Can the end time be earlier than the start time?
The ending date and time must occur after the starting date and time. Otherwise the calculator returns an error.
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