Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
160,972 days
From Monday, December 16, 1585 to Monday, September 7, 2026.
Monday–Friday weekdays114,980
Weeks and days22,996w 0d
Calendar span440 years, 8 months, 22 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.