My program guide is an hour ahead of what it is suppose to be. It lists programs that are suppose to be on at 2:00 at 1:00. My time is set for the right time in my area. How can I check my time zone to see if that is set right? Thanks in advance.

tzsetup

What about time? Also is there a way update your program guide? Thanks in advance

You really need to start searching for the answers to these questions on your own. They have all been covered many times before. We're glad to teach you to fish but this isn't a "free fish on demand" emporium. There are lots of folks with far more difficult problems who need answers that they're not going to find with 5 minutes of personal effort.