Generally, the working hours of securities companies are all with the stock market, so they need to open the door in advance to prepare for the closing, so most of them are around 9:00- 16:00. The specific time depends on the leadership arrangement.
Lunch break depends on the professional level of securities companies. For example, our business department has a lunch break at noon, and even customers come to put down their bowls for reception. Some securities companies have closed down.