Add or Subtract Days from a Date
Add or subtract days, weeks, months or years from a date and see the weekday.
🔒 Runs in your browser. Nothing you enter is uploaded or stored.
How to use it
Pick a start date, choose add or subtract, and enter an amount. Adding months keeps the same day of the month where possible; if that day does not exist (for example 31 January plus one month), the result is the last day of the month.
FAQ
Does it count the start day?
No. Adding 1 day to Monday gives Tuesday. To count the days between two dates, use the date difference tool.