Russia has 11 time zones.
Why it is true
Russia, the largest country in the world, spans 11 time zones, from Kaliningrad in the west to Kamchatka in the far east. When it is noon in Moscow, it is already midnight in Kamchatka.
Source: CIA World Factbook
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This is the reading side of the site, so the answer is in the sentence above — that is the whole point of it. Test yourself works the other way round: the question comes on its own, and the fact and the explanation only appear once you have answered.