How do I fix the air conditioner remote clock?

I am not sure this is a right place to ask technical help, but if it is wrong, do guide me where I should ask my question.

On the question at hand, my air conditioner remote clock speed up by I think, 10 minutes from the original time I set. I don’t know how this is happened and I wish how to stop this occurring nearly every week or day (I didn’t exactly keep time).

I don’t know whether naming the air conditioner brand would help but here it is, Benhong K-PN1122.