When is it easier for Yin and Yang teachers to draw ssr?

After the mobile phone application is updated, the probability of ssr will be higher at the hour and at night 12.

Actually, I think it's more like luck

Another way, which is more reliable, is that the daily lottery will give you an evaluation. At the end of Ji, Zhong and Daji, this is your luck in Yin and Yang Division. The chances are higher when you are lucky.