Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
184,345 days
From Tuesday, December 20, 1521 to Tuesday, September 8, 2026.
Monday–Friday weekdays131,675
Weeks and days26,335w 0d
Calendar span504 years, 8 months, 19 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.