Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
187,622 days
From Monday, December 30, 1512 to Tuesday, September 8, 2026.
Monday–Friday weekdays134,016
Weeks and days26,803w 1d
Calendar span513 years, 8 months, 9 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.