Date duration calculator

How many days, months, and years are there between two dates?

Additional Options

The Add time fields link takes you to the Time Duration Calculator where you can add hours, minutes, and seconds to your calculation.

Checking Include end date in calculation counts the final day in your result.

If you want to count how many days something lasted, for example, an event that lasted from the 1st to and including the 4th day of the month, this should be checked (result: 4 days.) Otherwise, the last day would not be counted (returning 3 days).

If you want to calculate the age of something, leave this unchecked (the last/end date is not counted as one additional day).


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