Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
17,648 days
From Wednesday, May 10, 1978 to Thursday, September 3, 2026.
Monday–Friday weekdays12,606
Weeks and days2,521w 1d
Calendar span48 years, 3 months, 24 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.