Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
144,231 days
From Friday, October 17, 1631 to Monday, September 7, 2026.
Monday–Friday weekdays103,021
Weeks and days20,604w 3d
Calendar span394 years, 10 months, 21 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.