Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
17,180 days
From Tuesday, August 21, 1979 to Thursday, September 3, 2026.
Monday–Friday weekdays12,272
Weeks and days2,454w 2d
Calendar span47 years, 13 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.