I have no need to try it, although it has been proven that the sense of time in a dream is different. For example, I had a dream that was in my 5th REM period or so that SEEMED to last hours but I don't believe it could've lasted more than an hour.

The reason for this was proved by Steven LaBerge
He had a set of lucid dreamers get lucid in a dream. The minute they did they did some kinda movement so that brain meter thingy would jump. Then they counted to ten and did the movement again.

When they did the time was all messed up. No one counted to ten in ten seconds. Instead most counted to ten in under ten seconds.