Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
17,181 days
From Monday, August 20, 1979 to Thursday, September 3, 2026.
Monday–Friday weekdays12,273
Weeks and days2,454w 3d
Calendar span47 years, 14 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.