Missing time and location displacment

I have no idea if this was an alien abduction case or not, but i experianced missing time and displacement. It still haunts me to this day and i have no other ideas but to see what you all think.  I was in the army at the time in germany, stationed at ferris barracks erlangen.  I was in nurenburg one night when this all happened.  One minute i was in a speilhall the next minute the barracks light came on and my platoon sgt. Says pt formation in 15 minutes.   My clothes were stacked in my locked wall locker, and i was really confused. I had 3 room mates and none of them heard me come in. The charge of quarters at the front door didn't recall me coming in.  I rememeber the whole thing before and after the event vivadley.  But have no idea what happened to me.  
Please if you have any ideas as to what might have happened, please let me know.  I don't know where else i can can turn with this. 
Thanks!
Witness indicates that date is approximate.  PD