Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
147,366 days
From Saturday, March 18, 1623 to Monday, September 7, 2026.
Monday–Friday weekdays105,261
Weeks and days21,052w 2d
Calendar span403 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.