Where is the prime meridian and the international date line?
I’m not sure, but I think the prime meridian is the line that runs through Greenwich, London and is the line that all time is worked out from. The international date line is located somewhere between the easternmost point of the USSR (Russia) and the US State of Alaska and is the line that divides yesterday from today. The international date line is not straight: it zigzags around the islands in the Pacific Ocean so that all the nations in that area are on the same day (otherwise, one half of a nation would be a day ahead of the other half). The most eastern point of Russia is the first to experience each new day: as the Earth rotates each time zone will experience each new date in turn, before Alaska and the other areas in its time zone change dates last; however, a short time later, Russia will be in the next day onwards. The Prime Meridian runs through Greenwich to the north and the south. Greenwich Mean Time is taken from this point (any territory in the same time zone as Greenwich
