It is most definitely afternoon haha
Maybe youโre behind instead of weโre ahead ๐
America is also one of only 3 countries worldwide to use the imperial system so theyโre behind in many ways
Officially, no. Officially they use the metric system and are practically nearly done with imperial
Kelvin is not very applicable for day to day temperature seeing as itโs based on absolute zero.
And Celsius is a more adapted kelvin it uses the same scaling ie 1 kelvin and 1 degree c are the same