I'm getting text messages from the future (timestamp problem)

[speck]

I've been having intermittent trouble with the 2nd half of long text messages arriving as much as 10 minutes before the 1st half (why are my messages being split anyway?).

Now my text messages are coming in time-stamped in the wrong time zone - they are coming in 1 hour ahead. At 10:15 PM central time I received a text message stamped 11:15 PM. The time on my phone itself is correct.

Did I mess up some setting somewhere or is this a Sprint network issue?