VERY STRANGE CELL PHONE INCIDENT THIS MORNING....PLEASE HELP .

This morning I got up with my husband at our regular time 4:30am and helped him out with breakfast/lunch before he left work. He usually leaves at 5:30am every single day to get to work an hour away. Now my husband sets two alarms one first at 4:30am to get up and one at 5:30am to leave for work. Both alarms went off as usual. So he tells me it's 5:25 and he walks out door. I looked at my phone to check it a few minutes later and it was 5:30 like his. Then I look at my phone again one hour later and it said 5:37 as if only seven minutes passed BUT IT WAS AN HOUR that passed. Confused, I checked my pc for time and it was right but my phone was not. I call my hubby and asked what time it was and his said same as my cell phone. He also noticed no one was at work. He was there an hour early. We both have NO idea how it happened. How did time change from 5:30 when he left and 5:30 when he got to work. Then ten minutes after talking about this on phone the time changed back to correct time without us doing so. WHY??? Any ideas what happened?