Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
161,034 days
From Tuesday, October 15, 1585 to Monday, September 7, 2026.
Monday–Friday weekdays115,024
Weeks and days23,004w 6d
Calendar span440 years, 10 months, 23 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.