📅 Date & Time

Working Days Calculator

Count the business days between two dates, excluding weekends and any public holidays you add. Perfect for deadlines, delivery estimates, and notice periods.

💼

Enter a start and end date to count the working (business) days between them. Weekends are excluded automatically, and you can add public holidays to leave out too.

Start Date

End Date

Weekend Days

Public Holidays to Exclude (optional)

Enter holiday dates in YYYY-MM-DD format, one per line. Only those falling on a working day are subtracted.

Include the end date in the count

Working Days

Total Days

Weekend Days

Holidays Excluded

Working Weeks

What is a Working Days Calculator?

A working days calculator counts the number of business days between two dates — the weekdays when offices, courts, banks, and businesses are open — while excluding weekends and public holidays. This is different from the total calendar days, because deadlines, delivery times, notice periods, and payment terms are often measured in business days rather than ordinary days. This tool gives you an accurate working-day count, with the flexibility to set which days are weekends and which public holidays to leave out.

Whether you're calculating a project deadline, a delivery window, a statutory notice period, or how many working days of leave a period covers, counting business days by hand is tedious and error-prone. This calculator does it instantly.

How Are Working Days Calculated?

The calculator counts every day between your two dates, then subtracts the weekend days and any public holidays that fall on a weekday. The result is the number of business days in the period.

Working Days = Total Days − Weekend Days − Holidays

(only holidays that fall on a weekday
are subtracted, to avoid double-counting)

Standard week = Mon–Fri working,
Sat & Sun excluded

How to Use This Calculator

Enter your start and end dates. Choose your weekend convention — the standard Saturday and Sunday, or alternatives for regions that observe different weekends. Optionally paste in public holiday dates (one per line, in YYYY-MM-DD format) to exclude them. Tick whether the end date should be included, then calculate. You'll see the working days plus a breakdown of total days, weekend days, and holidays excluded.

What the Results Show

The headline figure is the working days count — the business days in your period. The breakdown shows total days (every calendar day), weekend days removed, holidays excluded (those landing on a weekday), and working weeks (working days ÷ 5). This lets you see exactly how the final number was reached.

💡 Many legal and business deadlines are defined in "business days" or "clear days", which can exclude the first day, the last day, weekends, and public holidays. Always check exactly how a deadline is defined in your contract or jurisdiction — the include/exclude end-date option and holiday list help you match it precisely.

Why Business Days Matter

Many real-world timeframes run on business days, not calendar days: bank transfers ("3–5 business days"), shipping estimates, court filing deadlines, cooling-off periods, invoice payment terms (like "net 30 business days"), and employment notice periods. Counting in calendar days when a deadline is in business days can cause you to miss it — a "10 business day" deadline can be two full weeks of calendar time, or more across a holiday period.

Handling Public Holidays

Public holidays vary by country, and within countries by state or region — Australia, for example, has both national and state-specific public holidays. Because there's no single universal holiday list, this calculator lets you add the specific holidays relevant to your location. Simply paste the dates you want excluded, and only those falling on a working day are subtracted (a holiday landing on a weekend isn't double-counted).

Different Weekend Conventions

While most of the world treats Saturday and Sunday as the weekend, this isn't universal. Several Middle Eastern countries observe a Friday–Saturday weekend, and some contexts treat only Sunday as a non-working day. The calculator lets you select the convention that matches your situation, so the working-day count is accurate wherever you are.

Common Uses

Project deadlines: how many working days you have to deliver.
Delivery and shipping: when a "5 business day" parcel should arrive.
Notice periods: employment, tenancy, or contract notice in business days.
Payment terms: invoice due dates expressed in business days.
Annual leave: how many working days a holiday period uses up.

Frequently Asked Questions

How do I calculate working days between two dates?

Enter your start and end dates above, and the calculator counts the weekdays between them, excluding Saturdays and Sundays. You can also add public holidays to exclude. The result is the number of business days in the period, along with a breakdown of total days, weekends, and holidays removed.

What counts as a business day?

A business day (or working day) is any weekday — Monday to Friday — that isn't a public holiday. It's the days when banks, offices, courts, and most businesses operate. Weekends and public holidays are excluded. This is the unit used for many deadlines, delivery estimates, and payment terms.

Does this exclude public holidays?

It can — paste the public holiday dates relevant to your country or region into the holidays box (one date per line in YYYY-MM-DD format) and they'll be excluded from the working-day count, as long as they fall on a weekday. Because holidays differ by location, you add the specific ones that apply to you.

How many working days are in a year?

A typical year has about 260–262 working days (365 days minus roughly 104 weekend days), before subtracting public holidays. After public holidays, most countries have around 250–253 working days in a year. The exact number depends on how the weekends fall and your local holiday calendar. Use the calculator with a full-year range to find it precisely for your location.

Does "business days" include the start date?

It depends on the definition you're working to. This calculator lets you choose whether to include the end date, and counts from the start date. Some legal deadlines use "clear days" that exclude both endpoints. Check how your specific deadline is defined, and use the include/exclude option to match it exactly.

What's the difference between calendar days and business days?

Calendar days count every day including weekends and holidays. Business days count only weekdays that aren't public holidays. A period of 10 business days spans at least two calendar weeks, and longer if it crosses public holidays — so the two can differ significantly, which is why it's important to know which one a deadline uses.

Can I count a Friday–Saturday weekend?

Yes. Use the weekend convention selector to choose a Friday–Saturday weekend (observed in several Middle Eastern countries), a Sunday-only non-working day, or no weekend at all. The calculator adjusts the working-day count accordingly, making it usable wherever you are.

Is my data private?

Yes. The calculator runs entirely in your browser — the dates and holidays you enter stay on your device and are never uploaded or stored. The calculation is instant and completely private.