How to adjust the time of Polaris clock in Yantai, China?

China Yantai Polaris clock adjustment time;

1. Set the hour hand directly to 1 1. If you dial 1 1, then dial it once in turn and listen to the bell until you need it.

2. Above the reed seat (that is, the big iron block for fixing the reed), the effective length of the reed can be adjusted with a screwdriver. The longer the reed, the lower the tone, and vice versa.