使用方法

Choose a mode: count business days between two dates, or find the date that is N business days from a start date。
Set the start date and either the end date or the number of business days。
Optionally enter public holidays as comma-separated dates to exclude them from the count。
Read the result — weekends are always excluded, and any entered holidays are also skipped。

範例

From 2025-01-01 to 2025-01-31 with no holidays entered gives 23 business days (weekends excluded)。
Adding 2025-01-20 as a holiday reduces the count by 1 to 22 business days for the same range。