Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
161,245 days
From Monday, March 18, 1585 to Monday, September 7, 2026.
Monday–Friday weekdays115,175
Weeks and days23,035w 0d
Calendar span441 years, 5 months, 20 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.