GMT is Greenwich Mean Time: the time of day as measured at Greenwich, in London, used for many years as the world’s shared baseline for clocks. When people say a country is ‘GMT+8’, they mean its clocks are eight hours ahead of that London baseline — Taiwan is GMT+8.

GMTGMT is Greenwich Mean Time是 Greenwich Mean Time（格林威治標準時間）：the time of day as measured at Greenwich, in London以倫敦格林威治測量出來的時刻，used for many years as the world's shared baseline for clocks多年來被當作全世界時鐘共同的基準。When people say a country is 'GMT+8'當有人說某個國家是 'GMT+8' 的時候，they mean its clocks are eight hours ahead of that London baseline意思是它的時鐘比倫敦這個基準快八個小時——Taiwan is GMT+8台灣就是 GMT+8。

Airlines, radio, and old-fashioned world maps still talk in GMT, and British winter time is GMT.

Airlines, radio, and old-fashioned world maps航空公司、廣播電台，還有比較舊式的世界地圖 still talk in GMT還是用 GMT 來說時間，and British winter time is GMT而且英國的冬令時間就是 GMT。

Though actually, scientists now keep the official world time with atomic clocks, under the name UTC, and for ordinary life UTC and GMT stay in step. You will still hear GMT in news and travel, and it is the name learners meet first.

Though actually不過其實，scientists now keep the official world time with atomic clocks科學家現在是用原子鐘來維持官方的世界時間，under the name UTC名稱叫 UTC，and for ordinary life UTC and GMT stay in step而在日常生活裡 UTC 和 GMT 是同步的。You will still hear GMT in news and travel你還是會在新聞和旅遊時聽到 GMT，and it is the name learners meet first這也是學習者最先遇到的名稱。

Greenwich is a real place on the River Thames; the old observatory there is why this London suburb became ‘the zero line’ for time. GMT is not a time zone you ‘join’ in Taiwan. It is the reference other zones are counted from.

Greenwich is a real place on the River Thames格林威治是泰晤士河邊一個真實存在的地方；the old observatory there is why this London suburb became 'the zero line' for time那裡的舊天文台，就是這個倫敦近郊變成時間「零度線」的原因。GMT is not a time zone you 'join' in TaiwanGMT 不是台灣要「加入」的時區。It is the reference other zones are counted from它是其他時區計算時所依據的基準。