Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
187,552 days
From Monday, March 10, 1513 to Tuesday, September 8, 2026.
Monday–Friday weekdays133,966
Weeks and days26,793w 1d
Calendar span513 years, 5 months, 29 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.