📜 History & Origins
The monarch's official birthday has been marked in Australia since 1788, originally on the sovereign's actual date of birth. King Edward VII, whose real birthday fell in November, began the practice of a fair-weather 'official' celebration, and King George V later standardised it. Each state enacts its own Sovereign's Birthday Observance Act, which is why dates differ, and the holiday became the King's Birthday upon Charles III's accession in 2022.