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

63,064 days

From Sunday, May 5, 2199 to Saturday, September 5, 2026.

Monday–Friday weekdays45,045

Weeks and days9,009w 1d

Calendar span172 years, 8 months

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