Date Calculator - Days Between Dates, Add or Subtract Days from a Date

Calculate days between two dates, or add/subtract days, weeks, months, or years from any date

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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 →
Days
0
Weeks (≈)
0
Months (≈)
0
Years (≈)
0
あくまで推定値です。 計算結果は入力値に基づく一般的な式から生成された、情報提供のみを目的とするものです。金融、税務、法律、医療、または専門的な助言ではなく、個々の状況、管轄、税金、手数料、健康状態を考慮していません。重要な数値は必ず有資格の専門家に確認してください。本ツールの利用により、以下に同意したものとみなされます: 利用規約と免責事項.

使い方

  1. 1
    Pick a mode

    Days between two dates, or add/subtract from a base date.

  2. 2
    Enter dates

    For the between mode, pick start and end. For arithmetic, pick a base date, choose add or subtract, enter an amount, and pick the unit.

  3. 3
    Read the result

    See the exact count of days (and approximate weeks/months/years), or the resulting date.

Date Calculator - Days Between Dates, Add or Subtract Days from a Date について

Free date calculator with two modes. Days between two dates: pick a start and end date to see the exact number of days, weeks, months, and years between them. Date arithmetic: pick a base date and add or subtract days, weeks, months, or years to find a resulting date. Great for deadlines, contracts, project planning, or figuring out anniversaries. Runs entirely in your browser. 712 Tools の Date Calculator - Days Between Dates, Add or Subtract Days from a Date 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

Does this count business days only?

No - this counts calendar days, including weekends and holidays.

Are months exact?

In between-mode, months are approximate (based on 30.44 days per month). In add/subtract mode, month arithmetic follows standard calendar rules - adding one month to Jan 31 lands on Feb 28 or 29.

Is my date data uploaded?

No. All calculations run entirely in your browser.

続きを読む

7 分で読了

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