King's Birthday falls on the second Monday of June in New South Wales, Victoria, South Australia, Tasmania, the Northern Territory and the ACT. Western Australia and Queensland do not observe the holiday on this date, so 5 June 2030 carries the public holiday in six jurisdictions and not in the other two, one of the clearest state-by-state splits on the calendar.
A public holiday landing on a Wednesday sits in the middle of its working week rather than beside a weekend, so it does not create a long weekend on its own. Wednesday 5 June 2030 falls on this day of the week, at the working week's midpoint, three working days deep into the week.
The hours and minutes shown in the countdown to 5 June 2030 are calculated against the clock and time zone set on the device displaying this page, and the countdown reaches zero at midnight local to that device. Two people in different time zones will see slightly different figures at the exact same moment, each reflecting their own local midnight.