Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
177,629 days
From Friday, May 10, 1540 to Tuesday, September 8, 2026.
Monday–Friday weekdays126,877
Weeks and days25,375w 4d
Calendar span486 years, 3 months, 29 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.