South Australia Business Day Calculator
Last reviewed: August 26, 2026 · Holiday data: August 26, 2026
Calculate business days in South Australia with its own public holidays. South Australia shares the Monday to Friday working week and the Saturday and Sunday weekend with the rest of Australia, but its public holiday calendar is different, so due dates and deadlines can land differently from the national count.
How South Australia differs from the national Australian holidays
South Australia follows the national Australian public holidays and adds four of its own. It takes Adelaide Cup Day on the second Monday of March, observes Easter Saturday and Easter Sunday (Easter Sunday became a public holiday in 2024 under the Public Holidays Act 2023), and holds Labour Day on the first Monday of October. The King's Birthday stays on the national June date, and South Australia does not move Anzac Day when 25 April falls on a weekend. Its Act draws the distinction inside a single section: a weekend Christmas Day, New Year's Day, or Proclamation Day gets an extra weekday in addition to that day, while a weekend Australia Day gets the following Monday instead of that day. South Australia names 26 December Proclamation Day rather than Boxing Day, on the same dates. The working week is Monday to Friday with a Saturday and Sunday weekend, so the public holiday set is what changes the count.
Worked example
Adding 2 business days to Friday, March 6, 2026 using South Australia's public holidays lands on Wednesday, March 11, 2026. With the national Australian public holidays, the same calculation lands on Tuesday, March 10, 2026: the gap comes from South Australia's own calendar.
South Australia public holidays in 2026
| Date | Day | Public holiday |
|---|---|---|
| January 1 | Thursday | New Year's Day |
| January 26 | Monday | Australia Day |
| March 9 | Monday | Adelaide Cup Day |
| April 3 | Friday | Good Friday |
| April 4 | Saturday (weekend) | Easter Saturday |
| April 5 | Sunday (weekend) | Easter Sunday |
| April 6 | Monday | Easter Monday |
| April 25 | Saturday (weekend) | ANZAC Day |
| June 8 | Monday | King's Birthday |
| October 5 | Monday | Labour Day |
| December 25 | Friday | Christmas Day |
| December 26 | Saturday (weekend) | Boxing Day |
| December 28 | Monday | Boxing Day (additional) |
How to count South Australia business days
For an interactive calculation, use the Australia calculator and add South Australia's own dates under Advanced options. The per-year public holiday page below lists every South Australia date ready to paste in.
South Australia public holiday data is verified against the official state or territory government source.
Related links
Sources and verification
Official source: safework.sa.gov.au (opens in a new tab)
Cross-checked against this source on August 26, 2026.
For informational purposes only
This calculator provides general estimates based on business day counting rules. It does not constitute legal advice. Deadlines in legal, regulatory, or contractual matters may be subject to jurisdiction-specific rules, court orders, or statutory exceptions. Always verify critical deadlines with a qualified professional.