Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
180,699 days
From Monday, December 14, 1531 to Tuesday, September 8, 2026.
Monday–Friday weekdays129,071
Weeks and days25,814w 1d
Calendar span494 years, 8 months, 25 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.