Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
205,164 days
From Tuesday, December 20, 1464 to Wednesday, September 9, 2026.
Monday–Friday weekdays146,546
Weeks and days29,309w 1d
Calendar span561 years, 8 months, 20 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.