How to use the numbers at the top of the plots: add the number corresponding to your time zone to your local time in order to arrive at GMT. For example, if it is 7 am Eastern Standard Time (in the U.S.), then 7 + 5 = 12 noon GMT.

Also available:
   a larger version (1280x841,253k)
   a VERY LARGE version (2164x1422,515k)

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Disclaimer: Boundaries are for 1996 or before and are approximate.
Sources: Rand McNally New International Atlas (1996), Encyclopaedia Brittanica, and the U.S. Naval Oceanographic Office.