What time does daylight saving time start and end in the UK?

Daylight Saving Time in the UK starts at 2am on the last Sunday in March. It ends at 1:59 a.m. on the last Sunday in October.

Daylight Saving Time (DST), also known as Daylight Saving Time and Daylight Saving Time, is a system of artificially established local times for the purpose of saving energy. The standardized time used during this system is called "Daylight Saving Time". Generally, the time is artificially set one hour faster in the summer, when the sun comes up early, so that people can get up early and go to bed early, and the amount of lighting is reduced to make full use of the light resources, thus saving the electricity used for lighting. Various countries that have adopted the summer time system have different regulations. At present, nearly 110 countries around the world are required to implement daylight saving time every year.

It is said that the earliest idea of Daylight Saving Time was Benjamin Franklin (printed on the $100 bill), who served as the U.S. ambassador to France during the period of the U.S. rural aristocrats accustomed to early to bed and early to rise at that time to see the French get up at 10:00 a.m. on morning walks, the nightlife late into the night. So he wrote a letter to the editor of the Paris Magazine in 1784, in which he said that the habits of the French wasted the great sunshine, and advised them to go to bed early and get up early, saying that they could save 64 million pounds of candles a year. But he didn't suggest daylight saving time at the time, only that people should go to bed early and get up early. That's because there was no uniform division of time zones at all yet. But Daylight Saving Time means "saving time in the sun" in English. It wasn't until 1907 that British architect William Willett formally proposed the idea of Daylight Saving Time to the British Parliament, mainly to save energy and provide more time for soldiers to train, but the Parliament did not adopt it after debate. Being less famous than Benjamin Franklin, many people have taken Benjamin Franklin as the inventor of Daylight Saving Time and ignored William Willett.