Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
255 days
From Monday, December 22, 2025 to Thursday, September 3, 2026.
Monday–Friday weekdays183
Weeks and days36w 3d
Calendar span8 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.