How to subtract days from a date
Enter a starting date and the number of days to remove.
1
Choose the start date
Use the deadline or end point you are moving back from.
2
Enter the days
Use a whole number such as 14 for a two-week notice period.
3
Check the weekday
The result includes the weekday so you can avoid a weekend date.
What does this tool do?
This calculator moves backwards from a date by a whole number of calendar days. It is handy for notice periods, return windows and finding the date a task should have started.
The Formula
Result date = Start date − DaysFrequently Asked Questions
Can I move forward instead?
This tool only subtracts. Use the add days date calculator for a forward move, or swap the dates to measure the same interval.
How are month boundaries handled?
The calendar adjusts automatically, so 31 March minus 31 days lands on 28 February, or 29 February in a leap year.