Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
145,622 days
From Sunday, December 26, 1627 to Monday, September 7, 2026.
Monday–Friday weekdays104,016
Weeks and days20,803w 1d
Calendar span398 years, 8 months, 12 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.