Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
177,496 days
From Friday, September 20, 1540 to Tuesday, September 8, 2026.
Monday–Friday weekdays126,782
Weeks and days25,356w 4d
Calendar span485 years, 11 months, 19 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.