Daylight saving time in the US will officially come to an end by 2 a.m. on Nov. 1. This means the clock should be turned back one hour. Sunrise and sunset will be early, with sunset officially occurring by 4:53 p.m., reports Patch.com.

However, there are a few U.S. territories and states that do not observe Daylight Saving Time and therefore should not have to adjust their clocks to synchronize with the rest of the country. These places include portions of Alaska, Arizona, Hawaii, Guam, the Virgin Islands, the Northern Mariana Islands, American Samoa and Puerto Rico.

Arizona, save for the Navajo Nation, hasn't been observing Daylight Saving Time for 40 years and counting. The Bahamas will also officially end their daylight saving time adjustment on Nov. 1. The United Kingdom will end daylight saving time on Oct. 25. Many other countries are also scheduled to end their adjustment before the end of October.

TimeandDate lists down that daylight saving time in the United States will begin again by March 13, 2016 and end on Nov. 6. In the United Kingdom it will begin by March 27, 2016 and end by Oct. 30.

CNN reports that the United States initially adopted daylight saving time from the Germans during World War I as a means of somehow reserving resources, particularly fuel. The system was then dropped when the war had ended and the troops were able to come back home.

Daylight saving time was adopted again during World War II, except this time it was fully adopted in the United States even when the war was done. As stated by CNN, daylight saving time "just stuck around."

As reported by Heavy.com, the origins of daylight saving time date back to 1895. George Hudson, from New Zealand, was reportedly the first to come up with the concept but it wasn't until 1916 that both Germany and Austria-Hungary adopted the system.