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What is the notice of the adjustment of the winter schedule in 221?

The winter schedule in 221 is from October to April of the following year.

from October 18th, the office hours will be adjusted to: 8: 3am-11: 3am and 1: 3pm-5: pm.

1. Work and rest time in winter-8: -12: 14: -18: (or 13:-17:).

2. Work and rest time in summer-7: -11: 14: -18: .

in April 1986, China adopted daylight saving time.

the specific method is: every year from 2: a.m. sharp (Beijing time) on the first Sunday in mid-April, put the clock forward by one hour, that is, set the hands from 2: to 3: , and start the daylight saving time.

By 2: a.m. on the first Sunday in mid-September (Beijing daylight saving time), put the clock back one hour, that is, set the hands from 2: to 1: , and the daylight saving time will end.

In the six years from 1986 to 1991, except for 1986, which was the first year of daylight saving time, it started on May 4th and ended on September 14th, all other years were implemented according to the stipulated time period.