Hello how may I help you? I need to know what the time zones are in the US. Certainly. I can answer how many time zones are in the US. One moment please. There are four time zones in the United States. Eastern, Central, Standard, and Pacific. Hope this helps. How do time zones work? I can't actually tell you time how time zones work. I can only give you information related to time zones. Does this make sense? What is the time difference between the time zones? There is one hour difference between each time zone. Hope this helps. What about Pacific time? Pacific time is four hours ahead of Eastern, for example. Want another example? No thank you. Anytime. Need me to help with anything else? No, you've been very helpful. Glad I could help. Take care and have a great day!