Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
168,186 days
From Thursday, March 17, 1566 to Monday, September 7, 2026.
Monday–Friday weekdays120,132
Weeks and days24,026w 4d
Calendar span460 years, 5 months, 21 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.