Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
199,903 days
From Saturday, May 17, 1479 to Wednesday, September 9, 2026.
Monday–Friday weekdays142,788
Weeks and days28,557w 4d
Calendar span547 years, 3 months, 23 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.