Unix Timestamp Converter

Convert between Unix time, ISO 8601, and human-readable dates

🔒 100% ブラウザ内🆓 ずっと無料⚡ サインアップ不要
注意: 下記のツールインターフェースは現時点で英語のみに対応しています。UI の翻訳は順次進めています。 このツールを英語で見る →
Current time
Unix (s): 1788621217
Unix (ms): 1788621217000
ISO 8601: 2026-09-05T15:13:37.000Z
Local: 9/5/2026, 3:13:37 PM

使い方

  1. 1
    Watch the current time

    The current Unix timestamp updates live at the top in both seconds and milliseconds.

  2. 2
    Paste a timestamp or date

    Enter a number, an ISO 8601 string, or 'now' - the tool auto-detects the format.

  3. 3
    Read all formats

    Get Unix (s/ms), ISO, UTC, local, and a human-friendly relative time.

Unix Timestamp Converter について

Free online Unix timestamp converter. Convert seconds or milliseconds to ISO 8601, UTC, and your local time - or paste any date string to see all formats. Shows the current epoch time updating live. Runs entirely in your browser. 712 Tools の Unix Timestamp Converter はモダンな JavaScript API を使って完全にブラウザ内で動作します - サーバーがあなたのデータを見ることは一切ありません。つまり、即時の結果、完全なプライバシー、アップロード制限なしです。

デバッグ、簡単な確認、あるいは本番のインシデント対応まで - このツールは何度でも無料で使えます。ウォーターマークなし、サインアップなし、ツール内広告なし。

よくある質問

Seconds or milliseconds?

Unix timestamps are traditionally in seconds. JavaScript's Date.now() returns milliseconds. Use the dropdown to switch.

Which timezone is used?

'Local' uses your browser's timezone. 'UTC' and 'ISO' are always in UTC (Z suffix).

What date formats are accepted?

Anything the JavaScript Date constructor understands - ISO 8601, RFC 2822, and common variants like '2026-08-16 14:30'.

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