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

5,118 days

From Monday, September 10, 2040 to Sunday, September 6, 2026.

Monday–Friday weekdays3,656
Weeks and days731w 1d
Calendar span14 years, 4 days

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