Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
17,563 days
From Thursday, August 3, 1978 to Thursday, September 3, 2026.
Monday–Friday weekdays12,545
Weeks and days2,509w 0d
Calendar span48 years, 1 month
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.