Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
90,120 days
From Friday, December 10, 1779 to Sunday, September 6, 2026.
Monday–Friday weekdays64,370
Weeks and days12,874w 2d
Calendar span246 years, 8 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.