Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
17,716 days
From Friday, March 3, 1978 to Thursday, September 3, 2026.
Monday–Friday weekdays12,654
Weeks and days2,530w 6d
Calendar span48 years, 6 months
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.