Work Days Calculator

Count the working days (Mon–Fri) between two dates, minus any holidays.

Start date End date

Also exclude these holidays (one date per line, YYYY-MM-DD)

—working days (Mon–Fri)

—total days

—weekend days

—holidays excluded

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About the Work Days Calculator

This counts the number of working days between two dates — Monday to Friday, excluding weekends — and lets you subtract public holidays too. It's the tool for planning around business timelines: delivery and lead times, project durations, notice periods, SLA windows, annual-leave planning, or any "X working days" deadline. Pick the start and end dates and it counts the business days between them.

Counting down to a single future date instead of a range? See the Countdown Calculator.

How it works

It steps through every calendar day from the start to the end date (inclusive) and counts those that fall on a weekday (Monday–Friday). Saturdays and Sundays are excluded. Any dates you add to the holidays box (one YYYY-MM-DD per line) are also excluded if they land on a weekday. The result shows the working-day count, plus the total days, weekend days, and how many holidays were excluded.

Assumptions and behaviour

The count is inclusive of both the start and end dates.
The working week is assumed to be Monday to Friday; Saturday and Sunday are weekends.
Holidays are only excluded if they fall on a weekday (a holiday on a Saturday doesn't reduce the working-day count, since it wasn't a working day anyway).
Day-by-day counting handles month lengths, leap years and daylight-saving safely.
Need to add or subtract a duration instead of counting between two fixed dates (e.g. "6 weeks from today")? Use the Time Duration Calculator.

Limitations

Public holidays aren't built in. Holidays vary by country, region and year, so you add the ones that apply to you — the tool can't know your local calendar.
It assumes a standard Mon–Fri week; it can't model a six-day week, shift patterns, or regions where the weekend falls on Friday–Saturday.
It counts whole days only, not part-days or working hours.
For a plain calendar-day count including weekends, use the Date Difference Calculator.

Privacy

The calculation runs entirely in your browser. Your dates are never uploaded or stored.

Frequently asked questions

Is this work days calculator free?

Yes — free, no sign-up, no limits, runs in your browser.

How does it count working days?

It counts every Monday to Friday between the two dates, inclusive of both ends, and excludes Saturdays and Sundays.

Is this a business days or weekdays calculator too?

Yes — working days, business days and weekdays all mean the same thing here: Monday to Friday. Enter two dates and it tells you how many business days (weekdays) there are between them.

Can I exclude public holidays?

Yes. Add holiday dates (one YYYY-MM-DD per line) in the box and any that fall on a weekday are excluded from the count.

Are the start and end dates both counted?

Yes, the count is inclusive of both dates — so if both are weekdays, they're both counted.

Why aren't holidays automatic?

Public holidays differ by country, region and year, so there's no single correct list. You add the ones relevant to your location.

Can it handle a non-Monday-to-Friday week?

No. It assumes a standard Mon–Fri working week and can't model six-day weeks, shifts, or Friday–Saturday weekends.

Is my data uploaded?

No. Everything runs locally in your browser; nothing is sent or stored.

Written by Lakshay Kumar(TechLakshay)

A QA Automation Engineer by trade, Lakshay's real passion is untangling complex problems into simple, working solutions — which is exactly why FreeMyTask exists. On Instagram, he channels that same instinct into helping 26,000+ content creators with SEO education, motivation, and hands-on query solving.

Last updated: September 5, 2026