關於「ET Time zone」標籤，搜尋引擎有相關的訊息討論：

Eastern Standard Time – EST Time Zone - Time and Datewww.timeanddate.com › Time Zones › AbbreviationsEastern Daylight Time – EDT Time Zone - Time and Datewww.timeanddate.com › Time Zones › AbbreviationsEastern Time Zone - ET - WorldTimeServer.comwww.worldtimeserver.com › time-z