Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
140,791 days
From Monday, March 18, 1641 to Monday, September 7, 2026.
Monday–Friday weekdays100,565
Weeks and days20,113w 0d
Calendar span385 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.