You may have two clocks set up. Tap the clock on the home screen. a window pops up. look under world clocks see if you have a different city set up. Also check your time zone. Keep searching settings til you figure out what happen.
draftfan, we know the importance of ensuring your time is displaying correctly. Let's take a look at this together. Here's a link with the steps to modify clock settings. Our recommendation would be to select "Automatic" to use network provided values, tap the Automatic date and time switch to turn this on or off. Please keep us updated on the results. Did anything change on your phone when this issue began - i.e. new applications; software or application updates; new location, etc.? TanishaS_VZW