What is Daylight Saving Time?

On the first Sunday of November, at 2 p.m., in most of the United States and many other countries, the clocks turn back one hour

And stay there for about four months which is called standard time.

On the second Sunday of March, at 2 p.m., the clocks advance an hour past Daylight Saving Time.

Daylight Saving Time has its roots in train schedules, but it was implemented in Europe

and the United States during World War I to save fuel and electricity by increasing daylight hours,

The US standardized the practice when it passed the Uniform Time Act of 1966.

For about eight months out of the year, the US and dozens of other countries observe Daylight Saving Time.

And for the remaining four months they follow the standard time.

In the US, states are not required by law to "fall back" or "spring forward".

The twice-annual switcheroo is upsetting lawmakers of all political stripes enough that

the US Senate passed legislation to make daylight saving time permanent in March.

It was passed unanimously. The bill still needs to be passed by the House of Representatives

and signed by President Joe Biden to become law.

If approved, the change will not take effect until November 2023.

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