why does my event show a different start time than the facebook event is? ie on FB it is 3:30pm star

I read about the issues another person posted about time zones with displaying events and although I read the entire post I could not find the advanced settings to check if my time szone was enabled. Please tell me how to fix this becuase to display an event time starting at 2:30am instead of 3:30pm makes us look very unprofessional