Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
177,528 days
From Monday, August 19, 1540 to Tuesday, September 8, 2026.
Monday–Friday weekdays126,806
Weeks and days25,361w 1d
Calendar span486 years, 20 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.