Other
Time and date.com
This is a free site which began with the World Clock, and has grown to include many other wonderful tools for learning about time and date. what makes this site distinctive, is its ability to manipulate the perspective internationally to...
Wolfram Research
Wolfram Science World: International Date Line
This website provides a good general definition of the International Date Line.
Geographyiq
Geography Iq
Detailed geographical information on any country is available at this site. Within the World Map section, you can get facts and figures about each country's geography, demographics, government, political system, flags, historical and...