Time Zones 3Science brain teasers require understanding of the physical or biological world and the laws that govern it.How is it that you can cross a time zone and never need to change the time on your clocks?
AnswerGMT +12 and GMT -12 are really the same time, just on opposite sides of the international date line. You don't have to change the time, but you have to change the date.Hide What Next?
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