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Add Days Calculator

Add or subtract any number of days from a date. Enter a start date and the number of days to find the resulting date instantly, with automatic handling of month lengths and leap years.

How to Add Days to a Date

To add N days to a date, count forward N calendar days from the start date.

• Example: January 15 + 30 days = February 14

• Example: March 5 − 10 days = February 23

Month-end rollovers and leap years are handled automatically.


See also