Date-to-date calculator

Days between dates

Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.

Excluding the start date

90,955 days

From Wednesday, August 27, 1777 to Sunday, September 6, 2026.

Monday–Friday weekdays64,967
Weeks and days12,993w 4d
Calendar span249 years, 10 days

Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.