Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
17,705 days
From Tuesday, March 14, 1978 to Thursday, September 3, 2026.
Monday–Friday weekdays12,647
Weeks and days2,529w 2d
Calendar span48 years, 5 months, 20 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.