Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
17,839 days
From Monday, October 31, 1977 to Thursday, September 3, 2026.
Monday–Friday weekdays12,743
Weeks and days2,548w 3d
Calendar span48 years, 10 months, 3 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.