Mincha Gedolah on Sunday Nov. 6, at Mercaz Torah U'Tefilah begins at 12:21 PM, preceded by Daf HaYomi B'Halacha shiur

The nights are about to get a lot darker as we get ready to “fall back” into standard time. Daylight saving time ends at 2 a.m. Sunday, Nov. 6, which means you’ll want to turn your old-school clocks back before you go to bed Saturday night, Nov. 5.

Of course, the change is automatic for most smartphones, computers, tablets and other digital devices. Daylight saving time — called daylight “savings” time by some — is the practice of setting the clocks forward one hour from standard time during the summer months, and back again in the fall, to make better use of natural daylight.

The good news for the early risers is sunrise will be about an hour earlier and there will be more light in the mornings, but it also means sunset will be around 5 p.m. depending on your location. The daylight will dwindle over the next two months as we head into winter.

Shorter days and the end of daylight saving time are associated with SAD (seasonal affective disorder), a form of clinical depression that is believed to affect about 5 percent of the U.S. population; it may set in as people have less daylight to enjoy after they got off work. To combat the depression, the Mayo Clinic recommends outdoor activity, especially within two hours of awakening; exercising regularly; opening blinds and window shades to let light inside; light therapy; medications; and psychotherapy.

What will you do with your extra hour?

It is a good time to change smoke detector and carbon monoxide detector batteries and check to make sure those devices are in working order, according to fire officials.

Arizona, Puerto Rico, Hawaii, U.S. Virgin Islands and American Samoa do not observe daylight saving time.

While daylight saving time wasn't adopted in this country until the 20th century, it's hardly a new idea. Several ancient civilizations used water clocks that were adjusted differently throughout the year.

In modern times, none other than Benjamin Franklin wrote an essay in 1784, "An Economical Project," suggesting daylight saving time as a way to save candles. The time shift finally happened in the U.S. in 1918 when President Woodrow Wilson signed it into law to help the war effort during World War I. Back then, it was called Fast Time. It was scrapped after the war. President Franklin D. Roosevelt brought it back in 1942 at the start of World War II. It's been observed in this country ever since, and lengthened in recent years.