Is 28 September a public holiday?
Yes Monday 28 September 2026 is King's Birthday in WA. It is a normal working day everywhere else.
Public holidays are set state by state, so the same date can be a day off in one state and a normal Monday in the next. Here is what 28 September looks like in every published year.
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Sunday 28 September 2025 Working day
No public holiday in any state or territory.
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Monday 28 September 2026 Public holiday
- King's Birthday
A Monday, so it makes a three-day weekend in WA. The long weekend planner shows what a few days of leave either side would add.
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Tuesday 28 September 2027 Working day
No public holiday in any state or territory.
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Thursday 28 September 2028 Working day
No public holiday in any state or territory.
The holidays that fall on 28 September
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King's Birthday
The King's Birthday holiday does not fall on King Charles III's birthday, which is 14 November, and the Queen's Birthday holiday before it never fell on Queen Elizabeth II's birthday either. The June date comes from King George V, whose birthday was 3 June. When he died in 1936 Australia kept the June holiday rather than moving it for each new monarch. The holiday was renamed King's Birthday after the Queen's death in September 2022, with the first King's Birthday holidays taken in 2023. The King's Birthday Honours list, which recognises Australians for service in every field, is announced on the June long weekend regardless of which date a state observes the holiday.
More about King's Birthday
September in the public holiday calendar
September has two public holidays and both are single-state. Victoria's Grand Final Friday is usually the last Friday of the month, tied to the AFL fixture and provisional until it is gazetted. Western Australia's King's Birthday is proclaimed each year, usually the last Monday. On the day of the Grand Final holiday Melbourne is closed while Sydney works, and on WA's King's Birthday Perth is closed while the east coast works. Every other September date is a working day everywhere.
How public holidays are decided, and what you are owed28 September FAQ
Is 28 September a public holiday in 2025?
Sunday 28 September 2025 is not a public holiday anywhere in Australia. The nearest public holidays are Friday before AFL Grand Final on Fri 26 Sep (VIC), and King's Birthday on Mon 29 Sep (WA).
Is 28 September a public holiday in 2026?
Monday 28 September 2026 is King's Birthday in WA. It is a normal working day everywhere else.
Is 28 September a public holiday in 2027?
Tuesday 28 September 2027 is not a public holiday anywhere in Australia. The nearest public holidays are King's Birthday on Mon 27 Sep (WA), and Burnie Show on Fri 1 Oct (parts of TAS).
Is 28 September a public holiday in 2028?
Thursday 28 September 2028 is not a public holiday anywhere in Australia. The nearest public holidays are King's Birthday on Mon 25 Sep (WA), and Friday before AFL Grand Final on Fri 29 Sep (VIC).
Looking for the whole year? Every 2026 public holiday by state