Date Add / Subtract
Move a calendar date forward or backward while handling month and leap-year boundaries.
Loading the local tool workspace…
What is Date Add / Subtract?
Date Add / Subtract moves a date by a whole number of days, weeks, months or years.
How to use Date Add / Subtract
- 01
Choose the starting calendar date.
- 02
Enter a positive amount to add or a negative amount to subtract, then select the unit.
- 03
Copy the resulting calendar date.
Date Add / Subtract FAQ
How are leap years and short months handled?
Calendar boundaries are calculated directly, and an unavailable day is clamped to the last day of the target month.
Is Date Add / Subtract private to use?
Yes. Date, time and schedule calculations run locally in your browser and are not sent to Toolnera.