The time schedule of adult basketball training in private education needs to be determined according to personal situation and actual needs. Generally speaking, the training frequency of private education can be once, twice or even more per week. Here are some factors to consider:

1. Time schedule: Adult basketball training needs to consider the personal daily work, study and other time schedules, and the personal teaching time should match the personal time.

2. Training purpose: The training purpose of private education is different. If it is to improve basketball skills for competition or practice, the training frequency may need to be higher.

3. Consumption degree: Adult basketball training needs to consider personal physical condition and consumption degree, and it needs to leave enough recovery time between each training.

4. Economic ability: The cost of private education is relatively high, which needs to be properly considered and adjusted according to personal economic ability.

Under normal circumstances, the training frequency of adult basketball training can be chosen twice a week and once every other day, which can have sufficient recovery time and ensure the consistency and effect of training. It needs to be adjusted reasonably according to the actual situation and demand.