Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
26,674 days
From Tuesday, September 15, 2099 to Friday, September 4, 2026.
Monday–Friday weekdays19,052
Weeks and days3,810w 4d
Calendar span73 years, 11 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.