The bi-annual time change is approaching, when clocks will "fall back" an hour, giving millions of people more daylight in the mornings. This year, daylight saving time will end at around 2am local time on Sunday, November 3. During that night, an hour of sleep will be gained from our clocks “falling back." Daylight saving time began on March 10 at 2 a.m. local time when clocks moved forward by an hour. Arizona does not follow daylight savings due to its desert climate. Hawaii, Guam, Northern Mariana Islands, Puerto Rico, and the US Virgin Islands also do not participate. Hawaii does not participate due to its proximity to the equator, as there is not a lot of variance between hours of daylight during the year. Despite ongoing debate over clock changes, the US Senate unanimously approved the Sunshine Protection Act in 2022, a bill aimed at making daylight saving time permanent. The act was not passed by the US House of Representatives nor signed by President Joe Biden. In March 2023, Senator Marco Rubio reintroduced the "Sunshine Protection Act of 2023" to make daylight saving time permanent nationwide, but there's been no significant updates since. According to the American Academy of Sleep Medicine, standard time is more beneficial for the human biological clock. California Senator Roger Niello is advancing Senate Bill 1413, which aims to establish year-round standard time for California by February 2027. The bill is currently under committee review. Daylight saving time was historically introduced to conserve energy by extending evening daylight in World War I. The idea was to reduce dependence on artificial lighting, to save resources such as fuel. It was reintroduced again during World War II for the same purpose.