If the student has the necessary business that is why I cannot go to school, or timely or at 8.00 am for parents to write a letter requesting permission or obtain permission by their homeroom teacher to consider admission allowed.
If students have a functional necessity As a result, late for school Or to be late Or before 08.00 hrs., Wrote a letter to parents asking for permission. Or allowing yourself to the teacher. To be allowed to attend class
If a student has a business need. Therefore to school late, or in time, or the time ministry to Thailand. Parents write permission. Or asking self to the homeroom teacher. To consider allowing class.