Add or Subtract Days from Date
Add or subtract days, weeks, months, or years to any calendar date with day-of-week display.
About this tool
Calculate target future or past dates for deadlines, warranties, and milestones.
How to use this tool
- Choose base date
- Choose add or subtract
- Enter amount and unit
How it works
Performs calendar arithmetic handling variable month bounds and leap days.
When to use this tool
- Legal filing deadline tracking
- Visa stay calculations
Frequently asked questions
Does it display the day of the week?
Yes, the day of the week is calculated and shown.
Limitations
Standard Gregorian calendar only.
Privacy
Zero data transmitted.