Attendance of individuals with exceptional needs, identified pursuant to Chapter 4 (commencing with Section 56300) of Part 30, enrolled in a special day class or given instruction individually or in a home, hospital, or licensed children’s institution who attend school for either the same number of minutes that constitutes a minimum schoolday pursuant to Chapter 2 (commencing with Section 46100), or for the number of minutes of attendance specified in that pupil’s individualized education program developed pursuant to Article 3 (commencing with Section 56340) of Chapter 4 of Part 30, whichever is less, shall constitute a day of attendance.