Help me calculate the check-in and check-out time of the hotel.

Hello, the hotel is implemented in accordance with international practice. The check-in time of the hotel is 14: 00, and the check-out time is noon 12: 00. If you check in early or check out late, the hotel will charge a certain fee as appropriate.

According to your check-in requirements: check-in on the 20th-check-out on the 22nd, and the hotel will charge for 2 nights. If you arrive at the hotel earlier than 14, you can check in early if the hotel has a clean room.