Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
16,775 days
From Monday, September 29, 1980 to Thursday, September 3, 2026.
Monday–Friday weekdays11,983
Weeks and days2,396w 3d
Calendar span45 years, 11 months, 5 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.