Excuse me, is the hotel accommodation fee calculated by 12 hour or 24 hours?

Hello. At present, the general accommodation time in domestic hotels is from noon on the same day 12 to noon on the next day 12. This is a 24-hour system. For example, if you need to check in, the best time for hotel check-in is after noon 12, and the day starts from this time, and the next day is noon 12. If the fee is not renewed, you must check out before 12. If you don't check out, it will be automatically regarded as continuing to check in, resulting in two days' room payment.

Can you understand? I hope it works for you.