Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
18 days
From Monday, September 21, 2026 to Thursday, September 3, 2026.
Monday–Friday weekdays12
Weeks and days2w 4d
Calendar span18 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.