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

90,390 days

From Monday, March 15, 1779 to Sunday, September 6, 2026.

Monday–Friday weekdays64,564
Weeks and days12,912w 6d
Calendar span247 years, 5 months, 22 days

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