Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
138,762 days
From Sunday, October 7, 1646 to Monday, September 7, 2026.
Monday–Friday weekdays99,116
Weeks and days19,823w 1d
Calendar span379 years, 11 months
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.