Hello how may I help you? I need info about time zones, cna you help with that yes, I can help you calculate the times in different time zones. What I am wondering is, how do time zones work? sorry, I am not equipped the information on how time zone works. Do you know how many time zones there are? there will be 24 time zone in the earth. Okay. How many in the USA? USA main land has 4 time zone. Thanks for the info. thank you. do you need help with other question? No thank you.