Hi,
I searched informations about time zones but I didn't find any.
At the same time, it is noon in Greenland and Argentina while it is midnight in Siberia and Australia. This can be easily proven by phone calls.
Siberia and Greenland are close, it should be around the same time in these two places.
Greenland and Argentina are far away, if the sun is near Greenland it is far from Argentina. How can we explain that it is the same time in these two countries?