While visiting Dalian in NE China, I was told by a local university staff member that the CCP government can change anything they like. If the law says (as it apparently does) that factory workers must quit working and go home whenever the summer temperature hits 35 degrees, then all media sources will continue to report a maximum of 34 degrees at the monitoring station.
There is one thing, however, that they are powerless to change. That is what day of the week it is today.
(Cynical but healthy Chinese humour at work.)