Cron Expression Generator

Build and explain cron schedules visually

🔒 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 →
Presets
Meaning: Every 5 minutes every day.
Next 5 runs (your local timezone)
  • Sat, Sep 5, 3:15 PM2026-09-05T15:15:00.000Z
  • Sat, Sep 5, 3:20 PM2026-09-05T15:20:00.000Z
  • Sat, Sep 5, 3:25 PM2026-09-05T15:25:00.000Z
  • Sat, Sep 5, 3:30 PM2026-09-05T15:30:00.000Z
  • Sat, Sep 5, 3:35 PM2026-09-05T15:35:00.000Z

使い方

  1. 1
    Pick a schedule

    Choose from common presets - or paste an existing cron expression.

  2. 2
    See the translation

    The tool shows a plain-English explanation ('At 9 AM every weekday').

  3. 3
    Preview next run times

    See the next 5 times the job will fire, in your local timezone.

Cron Expression Generator について

Free online cron expression generator and explainer. Build cron schedules with presets or paste an existing expression to see the next run times and a plain-English translation. Supports standard 5-field Unix cron with common extensions. 712 Tools の Cron Expression Generator 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

Which cron dialect?

Standard 5-field Unix cron (minute, hour, day-of-month, month, day-of-week) with common extensions: */n step values, ranges (1-5), lists (1,3,5).

Does it support seconds or years?

Not yet - those are Quartz-scheduler extensions. Standard Unix cron and most Linux crontabs use 5 fields.

How does it handle timezones?

Next-run previews use your browser's local timezone. Remember: your server's crontab uses the server's timezone unless overridden.

What's the difference between * and ?

In standard Unix cron there is no ? - use *. The ? character is Quartz-specific for disambiguating day-of-month vs day-of-week.

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