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

16,821 days

From Thursday, August 14, 1980 to Thursday, September 3, 2026.

Monday–Friday weekdays12,015
Weeks and days2,403w 0d
Calendar span46 years, 20 days

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