Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
186,449 days
From Friday, March 17, 1516 to Tuesday, September 8, 2026.
Monday–Friday weekdays133,177
Weeks and days26,635w 4d
Calendar span510 years, 5 months, 22 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.