Do you allow late check-in?
I will arrive at the airport by 8:30pm so maybe I might be able to check in by 9:30PM.
Thank you guys!
Yes, They do.
I think the best thing to do is to call them up or email them. I think there is no problem in having a late check in. All that you are worried is that they might give that room to someone else. So confirm with them earlier. The latest I went was around 4-5pm.
Get an answer from The Porcelain Hotel staff and past guests.