Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
186,264 days
From Monday, September 18, 1516 to Tuesday, September 8, 2026.
Monday–Friday weekdays133,046
Weeks and days26,609w 1d
Calendar span509 years, 11 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.