Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
140,145 days
From Wednesday, December 24, 1642 to Monday, September 7, 2026.
Monday–Friday weekdays100,103
Weeks and days20,020w 5d
Calendar span383 years, 8 months, 14 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.