Count days
Find how many days are between two dates, or which date it will be after some days, weeks, months or years.
1. Choose the dates
2. Result
Choose dates to start
Pick a start date and an end date, or press Today.
The dates you choose are sent to the AnnoDev server, which does the counting. Privacy
Examples
- A holidayFrom 10 to 17 July 2027, counting both days.
- A bill due in 30 daysFrom 29 October 2026, add 30 days.
- End of the month31 January 2027 plus 1 month.
Good to know
What happens at the end of a month?
If the day does not exist, the result is the last day of that month. 31 January plus 1 month is 28 February, or 29 February in a leap year.
Are leap years counted?
Yes. 29 February is counted in leap years like 2028.
Date Calculator: Days Between Dates, Add Days
Count the days, weeks, months and years between two dates, or add and subtract days, weeks, months or years from a date. Free, no sign-up.
Calendar calculations depend on the selected operation and whether endpoints are included. Check those choices for deadlines. Days between dates are not automatically working days or a jurisdiction-specific deadline calculation.