Most mobile phones will automatically update the time for you depending on where you are. So if you're in an area where DST is in effect (and lost an hour today), you should be seeing the right time on your cell phone. For some reason, this wasn't happening on my Android phone today, even though the correct time was on my husband's phone (same phone, same network). I chalk it up to my phone sympathetically resisting the time change with me.
If you're having this problem, the fix is simple. Go into your settings and find the time section (or "date and time"). Uncheck the option to automatically update the time. Then restart your phone, go back into the settings and re-check that option.
If this works (or doesn't work) for you or you have a different solution, please let us know in the comments.