Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
255,583 days
From Monday, December 9, 1326 to Sunday, September 13, 2026.
Monday–Friday weekdays182,559
Weeks and days36,511w 6d
Calendar span699 years, 9 months, 4 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.