So it was really strange... I was working last night and I watched my phone change from 2am to 1am. Cool. However, when I woke up this morning, I noticed that my phone changed again to an hour ahead. What's strange is, if I go into airplane mode and back out again, it will set itself correctly to an hour behind. It changes right back within a few seconds. When I go into date and time to set the location to CST, again, it will change to my correct location and time but then within a few seconds, it keeps changing back to "etc/GMT +5". Please help! I'm using an iPhone 5 on Sprint.