Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
161,251 days
From Tuesday, March 12, 1585 to Monday, September 7, 2026.
Monday–Friday weekdays115,179
Weeks and days23,035w 6d
Calendar span441 years, 5 months, 26 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.