Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
146,326 days
From Wednesday, January 21, 1626 to Monday, September 7, 2026.
Monday–Friday weekdays104,518
Weeks and days20,903w 5d
Calendar span400 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.