Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
138,974 days
From Friday, March 9, 1646 to Monday, September 7, 2026.
Monday–Friday weekdays99,266
Weeks and days19,853w 3d
Calendar span380 years, 5 months, 29 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.