What counts as a business day on this page?

On this page, a business day means a weekday that is not listed in your custom holiday input. When weekend exclusion is turned on, Saturdays and Sundays are skipped.

Can I count workdays between two dates?

Yes. Use the Business Days Between Dates mode, enter a start date and end date, and the page will count the valid workdays in that span.

Can I find what date is 10 business days from today?

Yes. Switch to Add / Subtract Business Days, use today or another base date, and add 10 business days. The result will show the resulting workday and weekday.

Can I add business days to a date?

Yes. Switch to Add / Subtract Business Days, choose add or subtract, and enter the number of business days you want to move.

Do holidays count automatically?

Not automatically. You can add custom holiday dates manually, and the calculator will skip them.

Why is this page different from the date calculator?

The date calculator focuses on general date difference and add/subtract tasks. This page focuses on workday logic where weekends and custom holidays may need to be excluded.

Business Days Calculator

Use this business day calculator to count business days between two dates or shift a date by a number of workdays — just enter the inputs below. It returns the business-day count, total calendar days, weekend days excluded, holiday days excluded, and the start and end weekdays, doubling as a business calendar calculator for weekday-aware scheduling rather than general calendar math.

Choose a business-day task

Switch between counting workdays across a date range and moving a date forward or backward by a number of business days.

Start date

Use the earlier date when possible so the result is easier to review.

End date

Use today for a current workday span or choose any later date for a future planning window.

Include the end date in the count

Exclude weekends

Country (auto public holidays)

Public holidays for the selected country are excluded automatically. Add any extra days below.

Custom holidays (optional)

Add one date per line in YYYY-MM-DD format. Only the custom holiday dates you enter are excluded.

The calculation runs in your browser. If you copy the link, the current dates, mode, and options are included in the URL.

Results update instantly as inputs change, so it is easy to compare scheduling scenarios without reloading.

Business day result

Review the workday count or the resulting business date below.

Choose a mode and enter dates

The page will show a result as soon as the required dates for the selected business-day mode are valid.

How this business days calculator works

This page treats business days as weekday-aware dates rather than simple calendar days. It can count workdays between dates or calculate what date lands after adding or subtracting business days while skipping weekends and custom holiday dates.

1. Choose the workday task

Use the first mode to count business days in a range, or the second mode to move a date by a number of business days.

2. Add dates and optional custom holidays

Enter the dates you want to compare or shift. If needed, add your own holiday dates in YYYY-MM-DD format so they are skipped.

3. Review the workday-aware result

The result shows business days, excluded weekend or holiday days, and the resulting workday when you shift from a base date.

How business days differ from calendar days

General date math and business-day logic are related, but workday calculations also need weekend and holiday rules.

Questions like "how many business days between two dates" or "what date is 10 business days from today" belong here because they depend on workday rules rather than raw calendar difference.

This page supports weekday exclusion and custom holiday dates entered manually. It does not load country-specific holiday calendars.

If you are planning SLAs, delivery windows, PTO ranges, or office workflows, business days are often more useful than raw calendar days.

A business-day shift can cross many calendar days even when the workday count is small, because weekends and holidays may be skipped.

Sources and references

This public reference explains moving a date forward or backward by weekdays.

timeanddate.com: Add or subtract weekdays help

Reference for the adjacent task of moving a date forward or backward by weekday-aware rules.

Business days calculator FAQ

What counts as a business day on this page?: On this page, a business day means a weekday that is not listed in your custom holiday input. When weekend exclusion is turned on, Saturdays and Sundays are skipped.
Can I count workdays between two dates?: Yes. Use the Business Days Between Dates mode, enter a start date and end date, and the page will count the valid workdays in that span.
Can I find what date is 10 business days from today?: Yes. Switch to Add / Subtract Business Days, use today or another base date, and add 10 business days. The result will show the resulting workday and weekday.
Can I add business days to a date?: Yes. Switch to Add / Subtract Business Days, choose add or subtract, and enter the number of business days you want to move.
Do holidays count automatically?: Not automatically. You can add custom holiday dates manually, and the calculator will skip them.
Why is this page different from the date calculator?: The date calculator focuses on general date difference and add/subtract tasks. This page focuses on workday logic where weekends and custom holidays may need to be excluded.

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