Hello how may I help you? Can you help me figure out time zones? Sure i cant i mean i can I live in New York. What time zone am I in? GMT-4 So what is the time difference from here to Iceland? iceland is on GMT only while new york is on GMT-4 So what exactly does that mean? GMT refers to Greenwhich Mean Time I just want to know how many hours difference there is in time between the two locations. Icelanf is 4 hours ahead of New York