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

77,240 days

From Thursday, March 16, 1815 to Saturday, September 5, 2026.

Monday–Friday weekdays55,171
Weeks and days11,034w 2d
Calendar span211 years, 5 months, 20 days

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