DST

Daylight saving time (DST is the convention of advancing clocks so that afternoons have more daylight and mornings have less. Typically clocks are adjusted forward one hour near the start of spring and are adjusted backward in autumn. 1907 proposal argued that DST increases opportunities for outdoor leisure activities during afternoon sunlight hours. The longer days nearer the summer solstice in high latitudes offer more room to shift apparent daylight from morning to evening so that early morning daylight is not wasted. DST is commonly not observed during most of winter, because its mornings are darker: workers may have no sunlit leisure time, and children may need to leave for school in the dark. Standard Time begins each year at 2 a.m. on the first Sunday of November. Move your clocks back one hour at the resumption of Standard Time. Daylight Saving time and Time zones are regulated by the U.S. Department of Transportation, not by NIST (National Institute of Standards and Technology) (U.S. Air Force photo/ Senior Airman Anthony Nelson)