Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
212,458 days
From Tuesday, December 31, 1444 to Wednesday, September 9, 2026.
Monday–Friday weekdays151,756
Weeks and days30,351w 1d
Calendar span581 years, 8 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.