Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
139,690 days
From Wednesday, March 23, 1644 to Monday, September 7, 2026.
Monday–Friday weekdays99,778
Weeks and days19,955w 5d
Calendar span382 years, 5 months, 15 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.