Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
189,379 days
From Monday, March 9, 1508 to Tuesday, September 8, 2026.
Monday–Friday weekdays135,271
Weeks and days27,054w 1d
Calendar span518 years, 5 months, 30 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.