I thought I was the only one experiencing this kind of problem.
Yes, it is true that this hotel practices a policy of turning off the air con in the afternoon and night time. Except for this issue, otherwise this hotel is acceptable for the rate that we are paying. The location is very convenient too. It's in the heart of the city center. Just a few steps, you can reach to whatever attractions that you want.
Stayed in this hotel for a few times last summer and winter. So, the best time to stay in this hotel is during winter, you don't need to bother about the air con.