[{"data":1,"prerenderedAt":200},["ShallowReactive",2],{"page:/zh-TW/timestamp-to-date":3},{"id":4,"title":5,"body":6,"description":176,"extension":177,"eyebrow":178,"faq":179,"locale":189,"meta":190,"navigation":191,"pageType":192,"path":193,"related":194,"seo":195,"stem":198,"__hash__":199},"pages/zh-TW/timestamp-to-date.md","時間戳轉日期",{"type":7,"value":8,"toc":166},"minimark",[9,14,34,37,41,64,67,87,90,93,96,154,157],[10,11,13],"h2",{"id":12},"安全轉換-epoch-數值","安全轉換 Epoch 數值",[15,16,17,18,22,23,22,26,29,30,33],"p",{},"貼上帶有正負號的整數，檢查工具辨識的單位，再選擇可讀結果所用的時區。",[19,20,21],"code",{},"1700000000","、",[19,24,25],{},"1700000000000",[19,27,28],{},"1700000000000000"," 與 ",[19,31,32],{},"1700000000000000000"," 分別採用四種單位，卻代表同一時刻。",[15,35,36],{},"自動辨識適合當代常見數值，但不是不可更改的判斷。處理歷史資料、負數或非常遙遠的日期時，應依欄位文件手動選擇單位。",[10,38,40],{"id":39},"各種輸出有何差異","各種輸出有何差異？",[15,42,43,47,48,51,52,55,56,59,60,63],{},[44,45,46],"strong",{},"UTC"," 是統一參考時間；",[44,49,50],{},"指定時區時間"," 會採用 IANA 時區規則與當時有效的日光節約時間偏移；",[44,53,54],{},"ISO 8601"," 適合機器讀取與日誌交換；",[44,57,58],{},"RFC 2822"," 常見於郵件與舊式協定。毫秒結果便於與 JavaScript ",[19,61,62],{},"Date"," 及許多 API 欄位比對。",[10,65,66],{"id":66},"常見錯誤",[68,69,70,74,81,84],"ul",{},[71,72,73],"li",{},"把 13 位毫秒當成秒，會產生極遙遠或超出範圍的日期。",[71,75,76,77,80],{},"直接在本地日期後加上 ",[19,78,79],{},"Z","，等於宣稱原值是 UTC，會改變它代表的時刻。",[71,82,83],{},"時間戳不會記住建立地點；從日期反推時間戳時才必須明確指定輸入時區。",[71,85,86],{},"微秒或奈秒可保留單位數值，但瀏覽器日期顯示通常只能精確到毫秒。",[10,88,89],{"id":89},"如何操作這個工具",[15,91,92],{},"貼上原始整數，不加入千位分隔符號。依來源文件選擇單位，或核對自動辨識，再選顯示時區並按轉換。修改輸入、單位或時區後，舊結果立即清除，避免誤複製。",[10,94,95],{"id":95},"輸入與輸出範例",[97,98,99,112],"table",{},[100,101,102],"thead",{},[103,104,105,109],"tr",{},[106,107,108],"th",{},"輸入或設定",[106,110,111],{},"預期結果",[113,114,115,129,141],"tbody",{},[103,116,117,124],{},[118,119,120,123],"td",{},[19,121,122],{},"0"," · s",[118,125,126],{},[19,127,128],{},"1970-01-01T00:00:00.000Z",[103,130,131,136],{},[118,132,133,135],{},[19,134,25],{}," · ms",[118,137,138],{},[19,139,140],{},"2023-11-14T22:13:20.000Z",[103,142,143,149],{},[118,144,145,148],{},[19,146,147],{},"-1"," · ns",[118,150,151],{},[19,152,153],{},"1969-12-31T23:59:59.999Z",[10,155,156],{"id":156},"使用結果前的檢查",[15,158,159,160,165],{},"UTC 與 ISO 表示同一時刻。微秒與奈秒保留原始整數，日曆日期顯示到毫秒。出現精度提示時，精確匯出應保存更細的整數。超出範圍與非整數有不同錯誤；修正資料前先看",[161,162,164],"a",{"href":163},"/zh-TW/guides/seconds-vs-milliseconds/","單位差異","。",{"title":167,"searchDepth":168,"depth":168,"links":169},"",2,[170,171,172,173,174,175],{"id":12,"depth":168,"text":13},{"id":39,"depth":168,"text":40},{"id":66,"depth":168,"text":66},{"id":89,"depth":168,"text":89},{"id":95,"depth":168,"text":95},{"id":156,"depth":168,"text":156},"將 Unix 秒、毫秒、微秒或奈秒轉換為 UTC、本地時間、ISO 8601 與指定時區日期。","md","Epoch 轉換 / 01",[180,183,186],{"question":181,"answer":182},"自動辨識時間戳單位的依據是什麼？","工具依現代日期常見位數提出秒、毫秒、微秒或奈秒建議，並清楚顯示選定單位。較早、負數或遙遠未來的數值應手動指定。",{"question":184,"answer":185},"Unix 時間戳本身帶有時區嗎？","沒有。它識別一個絕對時刻；UTC、本地時間或指定時區只用於將該時刻顯示成日期與鐘點。",{"question":187,"answer":188},"可以轉換 1970 年以前的日期嗎？","可以，使用負數時間戳即可，但最終範圍仍受瀏覽器 Date 能力限制。","zh-TW",{},true,"tool","/zh-tw/timestamp-to-date",null,{"title":196,"description":197},"時間戳轉日期工具 — Unix Epoch 轉 UTC 與本地時間","將秒、毫秒、微秒或奈秒 Unix 時間戳轉換為易讀日期、UTC、ISO 8601 與指定時區時間。","zh-TW/timestamp-to-date","CyV3SUs2M17a_1zK9M-KxcpqGRrUrdTIzQJXZBJQ4Aw",1792032486020]