Date-to-date calculator

Days between dates

Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.

The end date comes before the start date

5,131 days

From Sunday, September 23, 2040 to Sunday, September 6, 2026.

Monday–Friday weekdays3,665
Weeks and days733w 0d
Calendar span14 years, 17 days

Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.