What is going on??

We went up north this weekend to visit family, and my clock didn't change on my phone.  And then, the sounds stopped working.  Now it's randomly making noise/sound when I'm attached to my charger.  I tried playing music this morning at work, and Pandora wouldn't work.  And only half of IHeartRadio would work.  Weirdness.  So I'm going down to the Apple store tonight to see if they can figure it out.  It's happened before with my old phone, but it randomly fixed itself.  And I'm not waiting this time- because it's less than 3 months old.  The only thing I can think of is that I was on an Ihome device this weekend, and that might have caused it- but not the nonswitching of time.  Oh well-it'll all get fixed tonight.