On this day, 33 years ago, on April 5, 1992 (March 3, 1992, the lunar calendar), a six-year suspension of daylight saving time was implemented. On April 5, 1992, a six-year suspension of daylight saving time was implemented because of the inconvenience caused to society. On May 4, 1986, China began to implement daylight saving time-in summer, the hour hand is moved forward one hour and backward one hour in winter. It is said that this can enable people to go to bed early and wake up early, thereby saving electricity.