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"In what has become an annual tradition now, the WWF's Earth Hour is presently sweeping across the globe, getting people to switch off non-essential lights and appliances for a sixty-minute kindness to Ma Earth and her finite energy resources. All you'll need to do to participate is power down the old World of Warcraft questing station, turn the TV off, and maybe take a walk outside so your lights don't have to be on, starting at 8:30PM tonight. Half the world's already done its bit and it's now coming around to those in the UK, Portugal and Western African countries to do the same. Will you be part of it?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2011/03/26/earth-hour-2011-starts-at-8-30pm-your-local-time-wants-you-to-s/>