UnixEpoch

営業日計算ツール

プロジェクト計画、給与締め、決済日、SLA追跡のために営業日を計算します。

結果

Calculated Date
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曜日
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Unixタイムスタンプ (seconds)
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営業日差分(開始日から目標日)
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FAQ

How does this business day calculator work?

It adds or subtracts week日 only (月曜日 to Friday), skipping weekends automatically.

Can I calculate working-day difference between two dates?

Yes. Fill “Diff 目標日” to get business-day distance from the start date.

Can I use it for deadline planning?

Yes. It is suited for release windows, payment terms, and operations planning.

Does this calculator exclude holi日?

No. It excludes weekends automatically, but it does not remove public holi日 yet, so add holiday adjustments manually when needed.

Does the start date count as a business day?

You can choose whether to include the start date when it falls on a weekday by toggling the checkbox in the calculator.

Related pages: Timestamp Arithmetic, Date 変換er, Database Migration Scenario

加算, 減算, and Compare Working 日

Use this tool to add business 日 to a date, subtract business 日 from a date, or count working 日 between dates for SLA deadlines, payroll cutoffs, shipping estimates, and internal operations planning.