Date and Day Calculator


Weekend handling
Select weekend days. By default it counts calendar days. Holidays are not included.
Include end date

Days between dates

Start date
End date
Result:

Add / subtract days

Date
Operation
Days
Result:

Weekday & ISO week number

Date
Result:

Period end

Date
Operation
Result:

Description

The Date and Day Calculator helps you quickly calculate deadlines and intervals: the difference between dates, shifting a date by N days forward or backward, the day of the week and the ISO-8601 week number, as well as the end of a month, quarter, or year. You can also exclude weekends (days that will not be counted in the calculation). In addition, you can choose whether to include the last day or stop before it (inclusive/exclusive). Please note that public holidays are not treated as weekends.