hey this is john ratzenberger and you're watching "fox & friends." >> and hope you had a good night's sleep because you're going to lose an hour tonight, unfortunately. >> daylight-saving time begins. the good news spring. maybe not officially in our hearts spring is here. made it through the winter. the re-birth begins today. >> that's right. looking into the history of daylight-saving time. first really used during world war i to conserve on coal but the guy that came up with it was a new zealander and wanted to hang out in his yard at night. just wanted to bic daisies. >> no joke, by the way. >> brought to us by hard working immigrants. >> right. a fox news alert to start with. breaking overnight. a medical helicopter burst into flame after crashing to the ground and hitting a parked truck on its way to a hospital in st. louis. the pilot killed, the only person onboard. helicopter was about to pick up a medical team. it's not clear what caused that chopper to go down. and new overnight russian