Preparing for the Physical Education (PE) Entrance Exam should ideally begin at least six months before the exam date. This timeline allows candidates to thoroughly cover the required material, develop their skills, and build confidence. According to a study published in the Journal of Physical Education, Recreation, and Dance, students who start preparing six months in advance have a 20% higher chance of achieving a passing score compared to those who start just one month before the exam. This extended preparation period is crucial because it allows for a systematic approach to learning, including understanding the exam format, mastering key concepts, and practicing test-taking strategies.