Don’t forget to “fall back” one hour on Sunday, November 2nd at 2am. Love it or hate it Daylight saving time(DST) means you have to set your clocks ahead an hour once a year in the spring and then back an hour in the fall. It was first implemented during WW! as a way to save energy for war production, it was also referred to as “war time.” DST is not observed in Hawaii or Arizona (except for the Navajo Nation.)