Clock change: Fall backwards

Spring forward, fall back, the mnemonic we are all familiar with. But what is the reason for these biannual clock adjustments? Why do we have to change our clocks twice a year, and why do we do it in the spring and fall?
Daylight saving time (DST) is the practice of advancing clocks during the summer months so that evenings have more daylight and mornings have less. The idea is to make better use of the natural daylight. It was first proposed in the 18th century by Benjamin Franklin, but it was not until the 20th century that it was widely adopted.
There are a number of arguments in favor of DST. One is that it can save energy. By using more daylight, we can reduce our reliance on artificial light, which can lead to lower energy bills. Another argument is that it can improve public safety. By having more daylight in the evenings, people are more likely to be out and about, which can lead to a decrease in crime.
However, there are also some arguments against DST. One is that it can disrupt sleep patterns. When we change our clocks, our bodies have to adjust to the new schedule, which can lead to fatigue and irritability. Another argument is that it can be confusing. When we travel across time zones, we have to remember to change our clocks, which can be a hassle.
Ultimately, the decision of whether or not to use DST is a complex one. There are a number of factors to consider, including energy savings, public safety, sleep patterns, and convenience. In the United States, DST is currently observed from the second Sunday in March to the first Sunday in November. However, there is a growing movement to make DST permanent. In 2021, the U.S. Senate passed a bill that would make DST permanent, but the bill has not yet been passed by the House of Representatives.
As the debate over DST continues, it is important to weigh the pros and cons of each side. Ultimately, the decision of whether or not to use DST is a personal one.