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

58,602 days

From Monday, March 26, 1866 to Saturday, September 5, 2026.

Monday–Friday weekdays41,859
Weeks and days8,371w 5d
Calendar span160 years, 5 months, 10 days

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