How the result is calculated
- Years and months are added first, then weeks and days.
- If the day does not exist in the target month, the result is the last day of that month. January 31 plus one month is February 28, or February 29 in a leap year.
- With “Business days only”, counting starts the day after the start date and skips Saturdays and Sundays.
- “Repeat” lists the next dates in the series, each measured from the start date, so month ends never drift.
Examples
| Start | Change | Result |
|---|---|---|
| October 31, 2026 | + 30 days | Monday, November 30, 2026 |
| January 31, 2027 | + 1 month | Sunday, February 28, 2027 |
| February 29, 2028 | + 1 year | Wednesday, February 28, 2029 |
| March 31, 2026 | − 1 month and 1 day | Friday, February 27, 2026 |
| October 31, 2026 | + 30 business days | Friday, December 11, 2026 |
Recurring dates
Use Repeat to plan things that happen on a cycle, such as a dose every 90 days, a payment every 14 days or a review every 6 months. The list shows each date with its day of the week.
Need only the date from today? The days from today page answers that with one number.