8: 00-9: 00 am, afternoon 15: 00- 16: 00, afternoon 18: 30-7: 30. According to the inquiry, the Education Bureau of Lucheng District, official website shows that the time for air conditioning in schools is: 8: 00-9: 00 am, 15: 00- 16: 00, 18: 30-7: 30 am. The switching time of the air conditioner is also set in advance, and it will be automatically switched on and off from 8 am to 5 pm during the teaching period.