Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
My timezone is GMT+10 and I am generally in that channel most days (though sometimes afk, but I generally check my computer often) from about 10am - 4:30pm and then again from about 11pm - whenever I go to bed.