Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
146,691 days
From Tuesday, January 21, 1625 to Monday, September 7, 2026.
Monday–Friday weekdays104,779
Weeks and days20,955w 6d
Calendar span401 years, 7 months, 17 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.