I just want to know the time to enter to the champ trial
As far as I know all servers are GMT+8. I'm from the Netherlands which means that for the 'Dragon' event it is at 05:00 midnight and the 'Phoenix' event is 14:00 in the afternoon.
I use this side to check the event times for CET, but there are also other timezones. So maybe you this is useful for you too.
http://www.timebie.com/std/gmt+8.php
The Champ Trial is then between 13:30 & 14:00.