Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
144,614 days
From Sunday, September 29, 1630 to Monday, September 7, 2026.
Monday–Friday weekdays103,296
Weeks and days20,659w 1d
Calendar span395 years, 11 months, 9 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.