Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
131,663 days
From Monday, March 15, 1666 to Monday, September 7, 2026.
Monday–Friday weekdays94,045
Weeks and days18,809w 0d
Calendar span360 years, 5 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.