Date Difference
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Date Difference
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How it works
About this calculator
Measure the gap between any two calendar dates. See total days, weeks and remainder days, an approximate month count and the number of Monday-to-Friday weekdays in between.
Endpoints matter
By default the end date is excluded, which is how elapsed time is normally measured. Tick “include the end date” to count both days.
Weekdays, not holidays
Weekdays are Monday to Friday. Public holidays are not subtracted because they differ by country and year.
Count backwards too
Swap the dates at any time; the result is always expressed as a positive distance with a direction note.
Questions & answers
Frequently asked
How are working days counted?
Every Monday to Friday inside the interval is counted once. Public holidays and weekends are not removed beyond Saturday and Sunday.
Why is the month figure approximate?
A calendar month varies from 28 to 31 days, so the month figure divides total days by the average length of 30.44 days.
Results are provided for convenience. For legal, payroll or medical decisions, confirm with a qualified professional.