Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
215,979 days
From Tuesday, May 12, 1435 to Wednesday, September 9, 2026.
Monday–Friday weekdays154,271
Weeks and days30,854w 1d
Calendar span591 years, 3 months, 28 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.