Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
200,101 days
From Thursday, October 31, 1478 to Wednesday, September 9, 2026.
Monday–Friday weekdays142,929
Weeks and days28,585w 6d
Calendar span547 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.