Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
146,045 days
From Thursday, October 29, 1626 to Monday, September 7, 2026.
Monday–Friday weekdays104,317
Weeks and days20,863w 4d
Calendar span399 years, 10 months, 9 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.