Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
151,202 days
From Saturday, September 15, 1612 to Monday, September 7, 2026.
Monday–Friday weekdays108,001
Weeks and days21,600w 2d
Calendar span413 years, 11 months, 23 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.