Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
142,485 days
From Monday, July 28, 1636 to Monday, September 7, 2026.
Monday–Friday weekdays101,775
Weeks and days20,355w 0d
Calendar span390 years, 1 month, 10 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.