When our clocks stop, time continues on until we sleep!?

once a day all our clocks stop at exactly the same time as each other (digital, clockwork and 1 atomic) but time carries on unhindered. But when we wake up next day we have lost said time, generally about 2 3/4 hours. Why does it only happen when we sleep, we want to experience it in waking real time. How can we catch it out and actually see with our own eyes?