Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
31,795 days
From Thursday, August 17, 1939 to Friday, September 4, 2026.
Monday–Friday weekdays22,711
Weeks and days4,542w 1d
Calendar span87 years, 18 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.