Does 4: 50 am in downtown Guilin belong to 30 am?

4: 50 am is not a good time in downtown Guilin.

At 4: 50 in the morning, it is Yin Shi. At 4: 50 in the morning, it is the end of Yin Shi, and it will be over in ten minutes. One hour is two hours. It belongs to Yin Shi from three to five, and now it's five to seven.