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

71,391 days

From Monday, March 21, 1831 to Saturday, September 5, 2026.

Monday–Friday weekdays50,994
Weeks and days10,198w 5d
Calendar span195 years, 5 months, 15 days

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