A strange type of sleepwalking

I've done extensive research on this and I can't find anything about it, so I am forced to start asking questions. I don't even know if you can call my situation "sleepwalking".
About three years ago, I woke up at 6 AM and started to get ready for school. I took a shower, got dressed, watched TV, listened to music when my normal shows weren't on, and waited for over an hour before I left for school. I walked about half-way to school before I looked up the the sky and had a realization: The sky was dark. It was March, and the sky usually isn't dark at 7 AM. So it wasn't 7 AM as I thought. I felt my heart skip a beat as I looked down at my watch and nearly had a stroke when it read "1 AM". I ran back home and went back to bed.
This may seem like misreading a clock, but it wasn't. I looked at the clock when I woke up and it said 6 AM (but it really said 12), and after my shower I watched it for nearly an hour and it STILL was saying 6:xx. I went about (for the most part) my morning schedule without noticing what the real time was, even though I had clues from at least half a dozen sources (clocks, TV, Radio, etc). It hasn't happened in a long time but that wasn't the first time it had happened. It had been happening for years, but this was the last one I remember.
It has the signs of sleep walking but I was still conscious. I can't find anything about this anywhere. Advice and research data would be appreciated

It is a bit like what I posted on my last post. I wake up at 3am ish and tell my husband to get up and go to work because he will be late. I know it is dark, I look at the clock sometimes and I am still convinced he will be late for work. I remember the event the next morning. Not quite so bad as actually getting out of the house though.