Do you know time distortion?
One time a moment takes for ever. Another time it seems as if time is not passing at all. You experience the same amount of time completely different then another time?
That can also happen in hypnosis. When a hypnotic subject is in a really deep hypnotic state and experiences some major internal shifts he might come back and either think he has been gone for only second when it was indeed 30 minutes or he might have experienced it as hours when it where only very few minutes.
Something similar can happen when you are very much concentrated and focused on something you do. You might drive home in the evening and can’t even recall how you got there. Or you are waiting for that airplane to finally arrive and you are so concentrated on that, that it takes for ever.
Which is, I think quiet logical, if you regard hypnosis as a very ultra high concentration state. I often use this example to show that Hypnosis it not at all anything special, or even magic whoowhoo (although it might feel like that). A hypnotic state is something very usual and common to being human.
I would even suggest that you spend your time doing stuff, where you forget about time at all. Imagine spending your day with a project where you even forgot to look at you watch and you only notice when you are done. You might come close to happiness.