Add to a Date
Find the date after a chosen period. Enter your starting date and the years, months, weeks or days to add.
Resulting date
How dates are calculated
Years and months are combined and applied first. If the original day does not exist in the resulting month, the last day of that month is used. Weeks and days are then applied, with one week equal to seven days.
For example, January 31 plus one month is February 28 (or February 29 in a leap year). These are calendar dates; daylight-saving time does not change the result. Supported years are 0001–9999.
Does this count business days?
These are calendar calculations, so weekends and public holidays are included. One week means seven days. Use a business-day calculator instead if your deadline excludes non-working days.