Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
146,661 days
From Thursday, February 20, 1625 to Monday, September 7, 2026.
Monday–Friday weekdays104,757
Weeks and days20,951w 4d
Calendar span401 years, 6 months, 18 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.