1. Don't you have time? The time difference between Japan and China is 1 hour.

It's normal if you take off your watch when you sleep at night and wake up the next day. Because the watch needs to be worn on your hand, and then your hand will move by itself when you exercise, sometimes if you don't wear it for a long time, the watch will stop and you have to reset the time.

3. If you don't wear a watch and don't sleep at night, or sometimes you have to take off your watch, would you mind shaking it a few times after taking off your watch? This will probably make the watch run automatically for about 24 hours!

I gave a very detailed answer, ha, you have to give it to me!