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The World Time Clock by Charlotte Van Der Waals is a deceptively simple idea that accomplishes its task with style and grace. There's an unnumbered clock face on the side of this 12-sided cylinder, and you simply roll the clock over until the time zone you're looking for is on top. The names of two cities are etched on each of the 12 sides of this unique object, which makes no mention of AM or PM, allowing it to cover all 24 of the world's time zones. Available in two different styles and three colors for $75.

World Time Clock [Junro via Pop Gadget]