Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
17,359 days
From Friday, February 23, 1979 to Thursday, September 3, 2026.
Monday–Friday weekdays12,399
Weeks and days2,479w 6d
Calendar span47 years, 6 months, 11 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.