Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
175,568 days
From Monday, December 31, 1545 to Tuesday, September 8, 2026.
Monday–Friday weekdays125,406
Weeks and days25,081w 1d
Calendar span480 years, 8 months, 8 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.