Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
164,905 days
From Tuesday, March 11, 1575 to Monday, September 7, 2026.
Monday–Friday weekdays117,789
Weeks and days23,557w 6d
Calendar span451 years, 5 months, 27 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.