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

87,464 days

From Sunday, March 18, 1787 to Saturday, September 5, 2026.

Monday–Friday weekdays62,475
Weeks and days12,494w 6d
Calendar span239 years, 5 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.