[{"data":1,"prerenderedAt":176},["ShallowReactive",2],{"page:/zh-TW":3},{"id":4,"title":5,"body":6,"description":153,"extension":154,"eyebrow":155,"faq":156,"locale":166,"meta":167,"navigation":168,"pageType":169,"path":170,"related":155,"seo":171,"stem":174,"__hash__":175},"pages/zh-TW/index.md","目前的 Unix 時間戳",{"type":7,"value":8,"toc":143},"minimark",[9,14,23,26,30,33,57,60,63,66,69,72,126,129],[10,11,13],"h2",{"id":12},"什麼是目前的-unix-時間戳","什麼是目前的 Unix 時間戳？",[15,16,17,18,22],"p",{},"上方即時數字代表自 ",[19,20,21],"strong",{},"1970-01-01 00:00:00 UTC","（Unix 紀元）到現在經過的秒數。它不依賴顯示時區：同一個時間戳在臺北、紐約或倫敦都代表同一時刻。時區只會改變這個時刻顯示為哪一天、幾點鐘及對應的 UTC 偏移。",[15,24,25],{},"瀏覽器提供的裝置時鐘以毫秒為基礎。頁面同時列出秒、毫秒、微秒與奈秒，方便比對不同 API、資料庫與日誌系統的單位。微秒與奈秒列的額外末尾數字由毫秒換算而來，並不表示瀏覽器量測到更高精度。",[10,27,29],{"id":28},"如何判斷時間戳單位","如何判斷時間戳單位？",[15,31,32],{},"現代日期的正整數通常是 10 位秒、13 位毫秒、16 位微秒或 19 位奈秒。位數只能作為提示：接近 1970 年的數值較短，負數包含符號，遙遠未來的值也會增加。可靠的轉換流程應顯示自動辨識結果，並允許手動指定單位。",[15,34,35,36,40,41,44,45,48,49,52,53,56],{},"例如，",[37,38,39],"code",{},"1700000000"," 秒、",[37,42,43],{},"1700000000000"," 毫秒、",[37,46,47],{},"1700000000000000"," 微秒與 ",[37,50,51],{},"1700000000000000000"," 奈秒都代表 ",[37,54,55],{},"2023-11-14T22:13:20Z","。若把 13 位毫秒誤當成秒，結果會超出一般日期範圍。",[10,58,59],{"id":59},"在瀏覽器中本機轉換",[15,61,62],{},"目前時間、貼上的數值與選取的本機檔案都在這個瀏覽器中處理，不會為了轉換而上傳到伺服器。工具不需要帳號、資料庫或轉換歷程。輸出準確度仍取決於裝置時鐘、瀏覽器支援的日期範圍與內建時區資料。",[10,64,65],{"id":65},"如何操作這個工具",[15,67,68],{},"系統要求 Unix 秒時複製秒數，要求毫秒時使用獨立標示的毫秒行。快速轉換框解讀已有時間戳；日曆輸入、CSV 列表與兩地鐘點換算都有獨立工具頁。",[10,70,71],{"id":71},"輸入與輸出範例",[73,74,75,88],"table",{},[76,77,78],"thead",{},[79,80,81,85],"tr",{},[82,83,84],"th",{},"輸入或設定",[82,86,87],{},"預期結果",[89,90,91,103,114],"tbody",{},[79,92,93,99],{},[94,95,96,98],"td",{},[37,97,39],{}," · s",[94,100,101],{},[37,102,55],{},[79,104,105,110],{},[94,106,107,109],{},[37,108,43],{}," · ms",[94,111,112],{},[37,113,55],{},[79,115,116,121],{},[94,117,118,98],{},[37,119,120],{},"0",[94,122,123],{},[37,124,125],{},"1970-01-01T00:00:00Z",[10,127,128],{"id":128},"使用結果前的檢查",[15,130,131,132,137,138,142],{},"目前時間由裝置提供。變更顯示時區不會改變時刻，補零不會增加真實精度，保存時應記錄來源單位。可先看",[133,134,136],"a",{"href":135},"/zh-TW/guides/what-is-unix-timestamp/","Unix 時間戳定義","或",[133,139,141],{"href":140},"/zh-TW/guides/seconds-vs-milliseconds/","秒與毫秒","了解陌生數值。",{"title":144,"searchDepth":145,"depth":145,"links":146},"",2,[147,148,149,150,151,152],{"id":12,"depth":145,"text":13},{"id":28,"depth":145,"text":29},{"id":59,"depth":145,"text":59},{"id":65,"depth":145,"text":65},{"id":71,"depth":145,"text":71},{"id":128,"depth":145,"text":128},"查看目前秒、毫秒、微秒與奈秒時間戳，並將任意 epoch 數值轉換為易讀日期。","md",null,[157,160,163],{"question":158,"answer":159},"目前的 Unix 時間戳從哪裡取得？","頁面直接讀取你裝置的系統時鐘，再換算成自 1970-01-01 00:00:00 UTC 起經過的秒數。本站不會向伺服器索取固定的時間值。",{"question":161,"answer":162},"為什麼微秒與奈秒的末尾是零？","瀏覽器的一般日期時鐘以毫秒為精度。本站可將毫秒換算成微秒或奈秒單位，但不會把推算出的末尾數字宣稱為真正的次毫秒量測。",{"question":164,"answer":165},"Unix 時間戳包含時區嗎？","不包含。時間戳只識別同一個絕對時刻；把它顯示成日曆日期時，才會套用 UTC、本地時區或指定的 IANA 時區。","zh-TW",{},true,"home","/zh-tw",{"title":172,"description":173},"目前的 Unix 時間戳 — 即時 Epoch 時間","取得目前 Unix 秒數與毫秒數，複製 epoch 時間、將時間戳轉成日期，並比較 UTC 與本地時間。","zh-TW/index","qptfQIjLzd9WP2iPyEm1H2Fbfsf_LiDJBD_sB6tHxkM",1792032486008]