Hong Kong, Beijing, Amsterdam

Hello, I would like to travel to Beijing and to make use of the 72 hour free transit arrangement. I have a Hungarian passport which allows this option.

I will be arriving to Beijing from Hong Kong on Thursday 4 April at 10.45am and leaving Beijing on Sunday at 00.55am at night flying to Amsterdam. So in total I will spend around 62 hours in Beijing arriving from Hong Kong and leaving to the 3rd country the Netherlands.

I was told that I might not be allowed to board the plaine in Hong Kong if I don't have a valid visa. What is your experience with this? How does it work in practice?

In Beijing Airport how long would it take to get this exemption? I mean how many hours? Is it less than an hour or couple of hours?

Thank you for answering