Yesterday, I wrote some code especially for the Chinese New Year 狗年. Look at the date in the last text box at jsfiddle.net/coas/zvubxato. I wanted to test that my code worked correctly for browsers in different time zones. I am in the UK so my time zone is currently GMT+0000. It is actually really easy to change time zone in OSX.
Environment: OSX High Sierra version 10.13.2