umm can someone tell me what GMT means and how am i supposed to use it?i am in team llamas(the llama vs ponies stuff)and i supposed to tell my GMT but i dont now it.help? ??

http://whatismytimezone.com/

Very first result when I googled "what is my timezone".

thanks!!

Further answering your Q:
GMT stands for Greenwich Mean Time

Definition: What is GMT?
Your GMT: Greenwich Mean Time