Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
140,027 days
From Tuesday, April 21, 1643 to Monday, September 7, 2026.
Monday–Friday weekdays100,019
Weeks and days20,003w 6d
Calendar span383 years, 4 months, 17 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.