Originally Posted by jiejie

I agree the title is not descriptive: It should read "Visa Expires DURING Long Layover."

I think in this situation I'd try to get a one day extension from your local PSB (take your entire flight sequence booking). Failing that, and if changing the flight is more than the RMB 500 fine--consider doing nothing, and throw yourself on the mercy of the CAN Immigration officer, telling him that you booked the June 30 departure thinking you were in compliance and leaving China on time, when in fact you didn't realize you'd be stopping in CAN and this was going to throw you into the next day. Immigration officers do have authority to waive fines if you are only a day over, though they might give a warning. My guess is that this is what will happen to you (but have RMB 500 on hand just in case). It is highly unlikely that you will be entered in the database on a blacklist or have this counted against you in the future.