Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
223,183 days
From Monday, August 21, 1415 to Wednesday, September 9, 2026.
Monday–Friday weekdays159,417
Weeks and days31,883w 2d
Calendar span611 years, 19 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.