Flexible workday calculator

Business Days Calculator

Count business days between dates or add and subtract working days. Customize non-working weekdays and exclude your own holidays or closure dates.

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Non-working weekdays
Optional. Use YYYY-MM-DD separated by spaces, commas, or new lines.
Holiday calendars: this version excludes the custom dates you enter. It does not silently guess a national or regional holiday calendar.

Count business days between two dates

Choose which weekdays are non-working, decide whether the start and end dates count, and enter any known holidays or company closures. The result separates non-working weekdays from custom excluded dates.

Add or subtract business days

Switch modes to move forward or backward by a whole number of business days. Weekends and custom excluded dates are skipped automatically according to your selected schedule.

Share without sharing private closure dates

The share link contains the selected date range, mode, and non-working weekdays. Custom excluded dates are intentionally not placed in the URL because URLs can be stored in browser history, logs, and messages.