What counts as a business day here?

Monday through Friday, excluding any dates you list in the holidays box. Weekends (Saturday and Sunday) are always excluded automatically.

Are the start and end dates both included in the count?

Yes, when counting business days between two dates, both the start and end date are included in the range if they fall on a weekday and aren't listed as a holiday.

Can I use this for a specific country's public holidays?

Yes — paste your own list of holiday dates (one per line or comma-separated, in YYYY-MM-DD format) and the calculator will exclude them from the count. There's no built-in holiday calendar since these vary by country and year.

What happens if I enter a negative number in the 'add days' mode?

The calculator subtracts business days instead, walking backward from the start date and skipping weekends and any listed holidays, so you can find a date a certain number of working days in the past.

Is my data sent anywhere?

No. Everything is calculated locally in your browser using JavaScript's Date object — nothing is transmitted or stored.

BUSINESS DAYS CALCULATOR

Count working days between two dates, or add/subtract business days from a date — weekends and your listed holidays are skipped automatically.

Start date

End date

Holidays to exclude (optional, one per line or comma-separated, YYYY-MM-DD)

Business days11out of 15 total days

Excluded44 weekend days, 0 holidays

How to use the business days calculator

1
Choose whether to count business days between two dates, or add/subtract business days from one date.
2
Pick your date(s), and optionally list holidays to exclude, one per line (YYYY-MM-DD).
3
See the result update live — including how many weekend or holiday days were skipped.

Questions

What counts as a business day here?: Monday through Friday, excluding any dates you list in the holidays box. Weekends (Saturday and Sunday) are always excluded automatically.
Are the start and end dates both included in the count?: Yes, when counting business days between two dates, both the start and end date are included in the range if they fall on a weekday and aren't listed as a holiday.
Can I use this for a specific country's public holidays?: Yes — paste your own list of holiday dates (one per line or comma-separated, in YYYY-MM-DD format) and the calculator will exclude them from the count. There's no built-in holiday calendar since these vary by country and year.
What happens if I enter a negative number in the 'add days' mode?: The calculator subtracts business days instead, walking backward from the start date and skipping weekends and any listed holidays, so you can find a date a certain number of working days in the past.
Is my data sent anywhere?: No. Everything is calculated locally in your browser using JavaScript's Date object — nothing is transmitted or stored.