Wrong time displayed on text messages from Twitter

Why is the wrong time displayed on my text messages from Twitter? Every text I receive from the Twitter number has a timestamp of an hour later than the actual time it is received. I even tried changing my time zone to CST instead of EST in hopes of 'tricking' it to send the correct time, but it still doesn't work right. This also causes new texts from other sources to display somewhere way down in my Inbox since the newest texts appear on top and it assumes the others are at least an hour old.