However, some people think that having a haircut at noon may be bad for your health. They think that people who are weak or have a bad haircut at noon may be eroded by places with bad feng shui and affect their healthy life.
So whether you want to cut your hair at noon depends on your personal situation. If you are healthy and energetic, it is ok to cut your hair at noon. But if you are weak or in a bad mood, you'd better choose another time to have your hair cut.