Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
177,742 days
From Thursday, January 18, 1540 to Tuesday, September 8, 2026.
Monday–Friday weekdays126,958
Weeks and days25,391w 5d
Calendar span486 years, 7 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.