Date Calculator
Find the calendar distance between two dates, or add and subtract years, months, and days.
Everything runs in your browser. Files and text are not uploaded or saved.Dates
Date difference 0 days (0 weeks and 0 days) 0 years, 0 months, 0 days
How to Use
- Choose Date Difference or Add/Subtract Date.
- Pick the dates, or enter the years, months, and days to add or subtract.
- For a difference, turn on Include end date when the last day should count.
- Copy the result or reset the form.
FAQ
Does the day count include the start date?
By default it is the number of days from the start date to the end date. Include end date adds one day.
What happens on a short month?
January 31 plus one month lands on the last day of February, including February 29 in a leap year.
Is daylight saving time included?
No. The interval uses calendar dates, so a daylight-saving change cannot add or remove a day.