Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
177,752 days
From Monday, January 8, 1540 to Tuesday, September 8, 2026.
Monday–Friday weekdays126,966
Weeks and days25,393w 1d
Calendar span486 years, 8 months
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.