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

79,348 days

From Tuesday, December 5, 2243 to Saturday, September 5, 2026.

Monday–Friday weekdays56,677

Weeks and days11,335w 3d

Calendar span217 years, 3 months

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