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

17,352 days

From Friday, March 2, 1979 to Thursday, September 3, 2026.

Monday–Friday weekdays12,394
Weeks and days2,478w 6d
Calendar span47 years, 6 months, 1 day

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