jarvisbox

営業日計算ツール

日付に営業日を加減算、または2日付間の営業日数をカウント。

How to use

  1. Choose a mode: Add / subtract days to find a future or past date, or Count between dates to count working days in a range.
  2. In add mode, enter a start date and the number of business days. Use a negative number to go back in time.
  3. In count mode, enter start and end dates to see the total weekdays between them.

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よくある質問

Is this calculator free?
Yes, completely free with no signup and no usage limits.
Does it upload any data?
No. All calculations run in your browser — your dates never leave your device.
Does it work on mobile?
Yes. Works in Safari, Chrome, and Firefox on iOS and Android.

Last updated:

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