On Friday, Shire of East Pilbara councillors will vote on a plan to move the holiday from September 27 this year to July 5, the day the Marble Bar Cup is held.

Deputy Shire President Anita Grace said Marble Bar residents had requested the public holiday be shifted. She supported the move because she said it would increase visitation to the remote mining town's annual horse race.

"We don't just do it willy-nilly," she said of the holiday shunt.

"People come from near and far for the race.

"It's like its own little world up there - it's a very beautiful spot."

Cr Grace said the public holiday had been moved in previous years, including 2009, and that nobody had ever complained.

"It's good for the town to have the Queen's Birthday changed," she said.

"I don't know how many people even, on the correct day, celebrate the Queen's Birthday.

"It's not like Australia Day - it's just another day off."

If a majority of Cr Grace's colleagues agree with her at Friday morning's council meeting, the shire will write to Governor Ken Michael requesting the holiday be moved.

Dr Michael will also be asked to approve a Queen's Birthday shift - to August 16 in Newman - so that East Pilbara mining town's annual Fortescue Festival may also be celebrated on a public holiday.

The designated holiday on September 27 is not actually the birthday of Queen Elizabeth II. Australia's reigning monarch was born on April 21, 1926.

At 380,000 sqkm, East Pilbara is the largest shire, and third largest municipality, on the planet.