Add or subtract days
Get the resulting date by adding or subtracting calendar days, including leap years.
Processed on this device. The files are not sent to a server.
How to use this tool
- Choose the starting date.
- Enter whole days: positive to add, negative to subtract.
- Review and copy the resulting date.
What you should know
Gregorian calendar, years 0001–9999 and up to ±3,650,000 days. Calendar date in UTC: does not depend on time change, does not include hours, holidays or working days. Zero days preserves the initial date.
Do you count weekends and holidays?
Yes. They are calendar days. For a working date, other rules and a holiday calendar are required, which this tool does not apply.