Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
149,198 days
From Monday, March 12, 1618 to Monday, September 7, 2026.
Monday–Friday weekdays106,570
Weeks and days21,314w 0d
Calendar span408 years, 5 months, 26 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.