Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
21,814 days
From Wednesday, December 14, 1966 to Friday, September 4, 2026.
Monday–Friday weekdays15,582
Weeks and days3,116w 2d
Calendar span59 years, 8 months, 21 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.