Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
140,994 days
From Monday, August 27, 1640 to Monday, September 7, 2026.
Monday–Friday weekdays100,710
Weeks and days20,142w 0d
Calendar span386 years, 11 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.