Pacific standard time
柯林斯词典
1. N one of the standard times used in North America, based on the local time of the 120° meridian, eight hours behind Greenwich Mean Time 太平洋標準時; 用於北美的標準時，以子午線120度的儅地時間爲依據，比格林威治時間晚8小時 ( abbr: PST)
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