Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
159,523 days
From Monday, December 4, 1589 to Monday, September 7, 2026.
Monday–Friday weekdays113,945
Weeks and days22,789w 0d
Calendar span436 years, 9 months, 3 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.