Many students don't have enough time in the morning. Still have to study, and exercise at noon and afternoon is more reasonable. It is necessary to do some stretching exercises for a few minutes in the morning, at least to enhance your resistance. You can press leg press in the morning.
Just practice dancing for 45 minutes. It feels a little long. Feel for yourself, it doesn't matter if you are really not tired. Exercise moderately, or you will get well, and those injuries will be troublesome after 40 years old. So 45 minutes of exercise is not much, but it can be practiced comprehensively.
Exercise at night is good for losing weight. Exercise before going to bed is also possible. But control the nerve excitement. It's not good to sleep immediately after exercise. Rest for half an hour before going to bed.