The Standard Time Act in 1918 was the first introduction of daylight saving time to American clocks. What was then a temporary measure, held the nickname 'war time,' and lasted from spring to fall in an attempt to cut energy costs during World War I. The act is also responsible for the five time zones still in place today.

Will President Donald Trump eliminate daylight saving time? The debate over daylight saving time is heating up again as most Americans prepare to “spring forward” their clocks in just a few weeks. Lawmakers have been mulling for years on whether to eliminate the clock-switching practice,