Solved! Why My messages only show time but not have date

Solution
First, I would try restarting (turning off and back on) the phone. Should that not resolve it, then try clearing our your messages. Yes that means deleting them, or saving them to another device, to clear it out. All of them. Then again restart the phone.

If you still aren't getting the time and the date, then I would ask if there were any recent updates to the phone (not individual apps). If yes, then the update may be the cause.
First, I would try restarting (turning off and back on) the phone. Should that not resolve it, then try clearing our your messages. Yes that means deleting them, or saving them to another device, to clear it out. All of them. Then again restart the phone.

If you still aren't getting the time and the date, then I would ask if there were any recent updates to the phone (not individual apps). If yes, then the update may be the cause.
 
Solution