New answers tagged terminology
Both 時間帯 and タイムゾーン work, and both are very common ways to speak about time zones. But one thing you should know is that 時間帯 also describes the specific period of time in a day. Say, 朝の時間帯 means "the morning time" and used in this way it doesn't describes time zones. In short, if it is clear your sentence is talking about time zones, you can use either, but ...
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