Calculators · Free
Date Difference Calculator
Count the days, weeks, months and weekdays between two dates, or add and subtract days, months and years from a date.
Days between two dates
Pick both dates
Add or subtract from a date
Pick a date
About this tool
Pick a start and an end date to see the gap between them as a total number of days, as years, months and days, as weeks and days, and as the number of weekdays (Monday to Friday) — handy for project plans, notice periods and countdowns. Tick "Include the end day" when both the first and last day should count.
The second calculator works the other way: start from a date and add or subtract any number of years, months and days to find the resulting date and its weekday, such as "90 days from today" or "18 months before the deadline".
Adding months respects month lengths: one month after 31 January lands on 28 or 29 February, not in March. Public holidays are not taken into account, because they differ by country and region.
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