Business days calculator

What the result means

Business days are weekdays that are not public holidays in the jurisdiction you select. The count includes both the start and end date when they fall on working days, matching spreadsheet NETWORKDAYS.

How it is calculated

Count weekdays from start to end inclusive that are not in the holiday set for the chosen jurisdiction

• Start / end: Calendar dates. Order can be reversed; the signed count becomes negative.
• Jurisdiction: National-only, or a state/territory holiday calendar.

Adding business days walks forward (or backward) one calendar day at a time and only counts down when the day is a weekday and not a holiday. It does not count the start date itself.

Worked example

Ten NSW business days from 19 August 2026

A contract starts on Wednesday 19 August 2026 and allows ten business days to respond.

Start

19 August 2026 is a Wednesday and is not counted when adding days

Weekends skipped

22–23 August, then 29–30 August

Result

Wednesday 2 September 2026

Always check whether your contract uses calendar days, business days, or “clear” days, and which jurisdiction’s holidays apply.

How Australian public holidays are applied

National holidays such as New Year’s Day, Australia Day, Good Friday, Easter Monday, Anzac Day, Christmas and Boxing Day are always excluded, including Monday substitutes when those dates fall on a weekend.

State and territory holidays — Labour Day, King’s Birthday, Melbourne Cup in Victoria, Canberra Day, and others — are generated from published dating rules so later years do not need a new spreadsheet. Local show holidays and some council days are not included.

Questions