Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
24,371 days
From Monday, December 14, 1959 to Friday, September 4, 2026.
Monday–Friday weekdays17,409
Weeks and days3,481w 4d
Calendar span66 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.