What changes will be made to the working hours of Ningbo Zhenhai Refining and Chemical employees starting from April 2022?

Adopt five shifts and two shifts.

Work a 12-hour day shift on the first day, and work a 12-hour night shift from 8 pm on the second day to 8 am on the third day. Then rest on the fourth day. This way you can take five shifts and take one shift off. Shift workers at Zhenhai Refining and Chemical Co., Ltd. implement a "4+1" shift model. The daytime shifts are divided into one big shift, and one of the four big shifts will be taken out. This is the meaning of "4+1". Each shift lasts 12 hours, and the day shift 8:00-20:00, night shift 20:00-8:00, day shift is the normal working schedule of 8 a.m. to 5 p.m.