Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
143,137 days
From Sunday, October 15, 1634 to Monday, September 7, 2026.
Monday–Friday weekdays102,241
Weeks and days20,448w 1d
Calendar span391 years, 10 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.