I have a twelve hour transit at Guangzhou I want to join friday prayers please advise Time of prayer

Do you refer to the time of prayer of Huaisheng Temple?
If so, I am sorry that I am not very clear. I only go there for traveling, but I did not attend thie prayer, so I may only provide you the phone number of the temple. The number is 83333593 and I think you can call then to ask directly.

To reach the temple from the airport, you can take the shuttle express line 1 to reach its terminal near the local railway station and then change to take a taxi to reach the temple directly.