Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
145,602 days
From Saturday, January 15, 1628 to Monday, September 7, 2026.
Monday–Friday weekdays104,001
Weeks and days20,800w 2d
Calendar span398 years, 7 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.