Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
139,119 days
From Sunday, October 15, 1645 to Monday, September 7, 2026.
Monday–Friday weekdays99,371
Weeks and days19,874w 1d
Calendar span380 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.