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

86,458 days

From Friday, December 18, 1789 to Saturday, September 5, 2026.

Monday–Friday weekdays61,755
Weeks and days12,351w 1d
Calendar span236 years, 8 months, 18 days

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