Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
143,379 days
From Wednesday, February 15, 1634 to Monday, September 7, 2026.
Monday–Friday weekdays102,413
Weeks and days20,482w 5d
Calendar span392 years, 6 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.