When I travel to a different time zone, will the clock on my cell phone switch automatically?

If I were to travel to a different time zone, will my cell phone clock switch automatically with areas or states with no coverage? I have Virgin Mobile.When I travel to a different time zone, will the clock on my cell phone switch automatically?You have to have coverage, unless your phone has a GPS (I think it should change)When I travel to a different time zone, will the clock on my cell phone switch automatically?yes unless you put your phone not to change automatically