Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
161,982 days
From Saturday, March 12, 1583 to Monday, September 7, 2026.
Monday–Friday weekdays115,701
Weeks and days23,140w 2d
Calendar span443 years, 5 months, 26 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.