Add / Subtract Days from Date
Start Date
Number of Days
Date addition/subtraction calculates the resulting date after adding or removing days, automatically handling month boundaries, varying month lengths, and leap years.
- 1Add days to get future date; subtract to get past date
- 2Leap years add February 29 every 4 years (with century exceptions)
- 3Business day calculators exclude weekends and public holidays
- 4ISO 8601 format (YYYY-MM-DD) avoids ambiguity
15 February + 14 days=1 March (or 29 February in a leap year)
| Month | Days |
|---|---|
| Jan, Mar, May, Jul, Aug, Oct, Dec | 31 days |
| Apr, Jun, Sep, Nov | 30 days |
| February | 28 days (29 in leap years) |
References
🔒
100% Ilmainen
Ei rekisteröintiä
✓
Tarkka
Vahvistetut kaavat
⚡
Välitön
Tulokset heti
📱
Mobiiliystävällinen
Kaikki laitteet