Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
141,190 days
From Monday, February 13, 1640 to Monday, September 7, 2026.
Monday–Friday weekdays100,850
Weeks and days20,170w 0d
Calendar span386 years, 6 months, 25 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.