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

15,515 days

From Monday, March 12, 1984 to Thursday, September 3, 2026.

Monday–Friday weekdays11,083
Weeks and days2,216w 3d
Calendar span42 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.