<http://schema.org/about>
"Stuck between two time zones, some folks decided to make one of their own. On the opposite end of the scale, all of China claims only one time zone."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/lifestyle/arts-culture/questions/why-are-some-countries-30-minutes-off-the-global-time-zone-grid>