Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
17,396 days
From Wednesday, January 17, 1979 to Thursday, September 3, 2026.
Monday–Friday weekdays12,426
Weeks and days2,485w 1d
Calendar span47 years, 7 months, 17 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.