Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
17,173 days
From Tuesday, August 28, 1979 to Thursday, September 3, 2026.
Monday–Friday weekdays12,267
Weeks and days2,453w 2d
Calendar span47 years, 6 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.