[{"data":1,"prerenderedAt":163},["ShallowReactive",2],{"page:\u002Fzh-tw\u002Fguides\u002Ftime-zones-and-dst":3},{"id":4,"title":5,"body":6,"description":144,"extension":145,"faq":146,"intro":153,"kind":154,"locale":155,"meta":156,"navigation":157,"path":158,"seo":159,"seoTitle":160,"stem":161,"__hash__":162},"pages\u002Fzh-TW\u002Fguides\u002Ftime-zones-and-dst.md","理解時區與日光節約時間",{"type":7,"value":8,"toc":135},"minimark",[9,13,25,34,37,81,84,87,90,93,96,103,106,109],[10,11,12],"h2",{"id":12},"時區是一組規則",[14,15,16,20,21,24],"p",{},[17,18,19],"code",{},"America\u002FNew_York"," 與 ",[17,22,23],{},"Europe\u002FLondon"," 是 IANA 地區標識。UTC−05:00 或 UTC+01:00 只表示某時刻偏移。縮寫並非全球唯一，交流地區時間應保留 IANA 名稱。",[14,26,27,28,33],{},"紐約標準時間 UTC−05:00，日光節約時間 UTC−04:00；倫敦在 UTC+00:00 與 UTC+01:00 間切換。雙方不總在同週調鐘。2026 年 3 月 10 日紐約中午對應倫敦 16:00，3 月 31 日中午則是 17:00，可用",[29,30,32],"a",{"href":31},"\u002Fzh-TW\u002Ftime-converter\u002F","轉換器","核對。",[10,35,36],{"id":36},"當地鐘點可能跳過或重複",[38,39,40,53],"table",{},[41,42,43],"thead",{},[44,45,46,50],"tr",{},[47,48,49],"th",{},"紐約輸入",[47,51,52],{},"含義",[54,55,56,65,73],"tbody",{},[44,57,58,62],{},[59,60,61],"td",{},"2024-03-10 02:30",[59,63,64],{},"春季向前跳時，不存在",[44,66,67,70],{},[59,68,69],{},"2024-11-03 01:30，UTC−04:00",[59,71,72],{},"較早一次：05:30 UTC",[44,74,75,78],{},[59,76,77],{},"2024-11-03 01:30，UTC−05:00",[59,79,80],{},"較晚一次：06:30 UTC",[14,82,83],{},"一組日期與鐘點不一定只對應一個時刻。不存在時拒絕，重複時確認偏移。自然日可能只有 23 或 25 小時，時間軸不能假設每天都是 24 個相等小時。",[10,85,86],{"id":86},"非整小時偏移與跨年",[14,88,89],{},"加德滿都使用 UTC+05:45。阿德雷德標準時間為 UTC+09:30，日光節約時間為 UTC+10:30，這些分鐘不能四捨五入。",[14,91,92],{},"加德滿都 2026 年 12 月 31 日 23:30，對應阿德雷德 2027 年 1 月 1 日 04:15。相同時刻在目標已跨年，因此應一起寫日期與鐘點。",[10,94,95],{"id":95},"用完整長度安排會議",[14,97,98,102],{},[29,99,101],{"href":100},"\u002Fzh-TW\u002Fmeeting-planner\u002F","會議排程","把各地工作時段轉成絕對區間，再檢查完整會議。開始合適不代表結束也合適，週末與跨午夜也有影響。工作時段適配不等於實際空閒。",[14,104,105],{},"未來週期活動應保存地區時區與希望使用的當地鐘點。政策可能變更，瀏覽器時區資料也可能落後。本網站使用現有規則與裝置時鐘，不提供法定時間保證。",[10,107,108],{"id":108},"技術參考",[110,111,112,121,128],"ul",{},[113,114,115],"li",{},[29,116,120],{"href":117,"rel":118},"https:\u002F\u002Fwww.iana.org\u002Ftime-zones",[119],"nofollow","IANA 時區資料庫",[113,122,123],{},[29,124,127],{"href":125,"rel":126},"https:\u002F\u002Fdeveloper.mozilla.org\u002Fen-US\u002Fdocs\u002FWeb\u002FJavaScript\u002FReference\u002FGlobal_Objects\u002FTemporal\u002FZonedDateTime",[119],"MDN：Temporal.ZonedDateTime",[113,129,130],{},[29,131,134],{"href":132,"rel":133},"https:\u002F\u002Fwww.rfc-editor.org\u002Frfc\u002Frfc5545",[119],"RFC 5545 行事曆事件",{"title":136,"searchDepth":137,"depth":137,"links":138},"",2,[139,140,141,142,143],{"id":12,"depth":137,"text":12},{"id":36,"depth":137,"text":36},{"id":86,"depth":137,"text":86},{"id":95,"depth":137,"text":95},{"id":108,"depth":137,"text":108},"理解 IANA 時區、UTC 偏移、跳過或重複的鐘點，以及它們對世界時鐘與跨國會議的影響。","md",[147,150],{"question":148,"answer":149},"UTC 偏移就是時區嗎？","不是。偏移是某個時刻的差值，IANA 時區包含依日期改變的地區規則。",{"question":151,"answer":152},"紐約與倫敦為何有時差四小時、有時五小時？","美國與歐洲調鐘日期不同，中間幾週會改變常見時差。",null,"guide","zh-TW",{},true,"\u002Fzh-tw\u002Fguides\u002Ftime-zones-and-dst",{"title":5,"description":144},"時區與日光節約時間 — UTC 偏移、重複時間與會議","zh-TW\u002Fguides\u002Ftime-zones-and-dst","RXJl3lpvG8mjqKuLKiOxk9Jrntew8_QHdbgtZDdgWj8",1792030945622]