Calculators
Date Calculator: Days Between Dates
Count the days between two dates, in days, weeks, months and weekdays (Monday to Friday), or add and subtract days, weeks, months or years from any date to find the date you need.
Pick a start date and an end date.
How to use the Date Calculator
- Choose "Days between dates" or "Add or subtract time".
- Pick the dates, or a date and an amount of time.
- Read the result. Tick "Include the end date" to count both the first and last day.
Frequently asked questions
- How many days are there between two dates?
- Pick a start and an end date. The count doesn't include the end date unless you tick "Include the end date", the same way most calendars count (1 to 2 March is 1 day).
- How are weekdays counted?
- Every Monday to Friday in the span counts as a weekday. Public holidays aren't removed, because they differ by country and region.
- What happens when I add a month to 31 January?
- You get the last day of February (28 February, or 29 in a leap year), because February has no 31st.
- How is this different from the age calculator?
- The age calculator counts from a date of birth to today. This one works with any two dates and can also add or subtract time.
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