the mind-blowing facts revealed today we're uncovering five surprising facts about daylight saving time let's get started first daylight saving time was meant to save energy it was introduced to reduce the need for evening lighting but modern studies show the savings are minimal second not everyone observes it countries like China Japan India and most of Arizona don't follow Daylight Saving Time third it can affect your health the time change disrupts sleep and has been linked to increased heart attacks and injuries fourth Benjamin Franklin proposed it he suggested it in 1784 to save candles but it wasn't adopted until World War one fifth it's controversial many people dislike the twice-yearly clock Change leading some regions to stick with standard time all year if you enjoyed these facts don't forget to like