Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
199,999 days
From Monday, February 10, 1479 to Wednesday, September 9, 2026.
Monday–Friday weekdays142,857
Weeks and days28,571w 2d
Calendar span547 years, 6 months, 30 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.