Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
17,912 days
From Friday, August 19, 1977 to Thursday, September 3, 2026.
Monday–Friday weekdays12,794
Weeks and days2,558w 6d
Calendar span49 years, 15 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.