Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
17,174 days
From Monday, August 27, 1979 to Thursday, September 3, 2026.
Monday–Friday weekdays12,268
Weeks and days2,453w 3d
Calendar span47 years, 7 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.