Your driving in your car on your way to the store which is 30 minutes away. You suddenly seem to be at the story much sooner and can't believe how quick it was this time, the time flew by! Actually you zoned out for awhile. That's a form of dissociation that is more common to more people.

For me, I don't remember events the way they are explained to me. I remember them a little differently. I may omit a part and add another. Mine are brief perhaps only minutes. The more serious it gets when it's for longer periods.