Add or Subtract from Date

Please, enter a start date and the number of days, weeks, months and years you want do add or subtract from it, and press "Calculate" to see the resulting date.

Enter below how many days, months etc. you want to add or subtract


The calculations work only for the Gregorian Calendar so any result before Friday, 15 October 1582 will be considered invalid. However, you can quickly check dates thousand years ahead.