Zeitgeist alert! Tomorrow is the start of Daylight Savings Time, so the FDNY decided to make a video reminding people what to do with their clocks, because apparently 16 percent of you have absolutely no idea. But from the sounds of it, the FDNY has been watching a few too many Apple commercials. The cute acoustic soundtrack is paired with a fireman with a cheesy smile giving the thumbs up to setting clocks forward an hour and thumbs down to forgetting to change your smoke detector batteries. There are also lots of dynamic clocks: