DateCalculator: Days Between

Date Calculator answers two everyday questions: how long is it between two dates, and which date do you land on after adding or subtracting some time. Useful for deadlines, notice periods, delivery windows and countdowns.

• Pick a start and end date (any date from year 1 to 9999) to see the gap in total days

• View the same gap as years, months and days, weeks and days, and hours

• Switch on weekdays only (Mon–Fri) to count working days; public holidays are not considered

• Add or subtract days, weeks, months or years from any date, or add working days

• See the resulting date together with its day of the week

• Date info for every date: weekday, ISO week number, day of the year, quarter and leap year

• Jump to today's date with one tap

• Share the result as text

• Leap years and month lengths are handled correctly, so adding a month to January 31 lands at the end of February

• Switch between the two tools with one tap