功能请求：定时

[anjiel]

希望加入定时功能，时间戳转换计算比较麻烦（精确控制），且不确定耗电情况

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[StrollStars]

希望能够加入定时启动APP的功能，放在情景模式中。