1. The time before 9 o'clock is completely enough. Most of these people who have time to dance square dance are retired people, and some middle-aged women clean up their housework after work at night, and then go to the park downstairs to dance square dance with others. Everyone dances square dance to relax and exercise. Most square dances can start at 7: 00 pm, and they can fully exercise their muscles and muscles in two hours at 9: 00 pm, which can also make these people feel the joy of square dancing. So I think two hours of square dance time is completely enough, because square dance is also a physical activity, and I will feel very tired when I first learn it. I exercise for two hours every day, which has satisfied many people's daily exercise requirements.
Second, this time limit can also avoid affecting others' rest. Although most square dances are in the streets or parks, there are residents living around them. This part of the residents may have old people and children, and they may start to rest after 9 pm, so if they continue to dance square dance after 9 pm, it will also affect the normal rest of others. Especially after 9: 00 p.m., many high school students go home to continue their studies at night. If they continue to dance square dance downstairs, it will definitely affect the learning status of these children, so I think this decision is correct.
It is only stipulated that you can't dance square dance after nine o'clock, and there is no starting time, so after this rule, you can adjust the time of dancing square dance every day according to your own time. This rule is also to ensure that everyone has a rest time every day and does not affect the state of these square dancers.