Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
139,560 days
From Sunday, July 31, 1644 to Monday, September 7, 2026.
Monday–Friday weekdays99,686
Weeks and days19,937w 1d
Calendar span382 years, 1 month, 7 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.