Adjusting eight-character music is a method of health preservation in traditional Chinese medicine, which can adjust the gas field of human body through the vibration and rhythm of music and enhance the health and vitality of the body. For boys, the best time to tune the eight-character tune is as follows:

1. Morning: Listening to eight-character music after getting up or running in the morning is helpful for the body to quickly enter the state and improve its spirit and physical fitness.

2. Lunch break: Listening to eight-character music during lunch break can promote the relaxation and rest of the body and enhance the body's immunity and resistance.

3. Night: Listening to eight-character music before going to bed at night can help the body enter a deep sleep state, relieve stress and fatigue, and improve sleep quality.

In short, the best time to tune the eight-character tune should be chosen according to your living habits and physical condition, and the time that suits you is the best time. It should be noted that when listening to eight-character music, you should choose appropriate music and volume to avoid the negative impact of excessive listening to music on your body.