Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
139,564 days
From Wednesday, July 27, 1644 to Monday, September 7, 2026.
Monday–Friday weekdays99,688
Weeks and days19,937w 5d
Calendar span382 years, 1 month, 11 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.