Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
26,491 days
From Monday, March 16, 2099 to Friday, September 4, 2026.
Monday–Friday weekdays18,921
Weeks and days3,784w 3d
Calendar span72 years, 6 months, 12 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.