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Add or Subtract Days to a Date

Add or subtract days from a date to find a new date.

Last updated: 12 Aug 2026

Quick answer

This finds a new date by adding or subtracting days. For example, 90 days after 1 January 2025 is 1 April 2025. Enter a start date and the number of days above.

Find a date a certain number of days before or after a start date — handy for due dates, deadlines and reminders.

How to add or subtract days from a date

  1. 1 Enter the start date.
  2. 2 Enter the number of days and choose add or subtract.
  3. 3 The resulting date appears instantly.

Frequently asked questions

How do I add days to a date?
Enter the start date and the number of days to add; the tool returns the new date, including the weekday.
Can I subtract days?
Yes — choose "subtract days" to go backward from the start date.
Does it handle month and year rollovers?
Yes, it uses real calendar dates, so months and years roll over correctly.

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