Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
147,157 days
From Friday, October 13, 1623 to Monday, September 7, 2026.
Monday–Friday weekdays105,111
Weeks and days21,022w 3d
Calendar span402 years, 10 months, 25 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.