In the latest sign of industrial dissatisfaction in New Zealand, Nurses Organisation (NZNO) advisor David Wait said members of the 30,000-strong union "overwhelmingly" voted in favour of a stand down.

"Members are angry and frustrated," Mr Wait said.

"(The offer would) have given most members little more than 1.38 percent just under the rate of inflation. This is despite the incredible sacrifices they made in 2020 to keep the country safe from COVID-19."

Unless a mediation scheduled for next week can produce a circuit-breaker, nurses won't turn up for work for eight hours on June 9.

NZNO said nurses working at quarantine facilities would continue to work, as would those providing life-saving care.

"They do not strike on a whim and care deeply for their patients, but the time has come for a clear statement to be made," Mr Wait said.

"If nurses are not valued and appreciated, they will leave nursing or move overseas, and few young people will be joining the profession to replace them."

The strike action is in relation to a particular proposal, but there's widespread resentment in the public service arising from the a government pay guidance issued last week.

Finance Minister Grant Robertson and Public Service Minister Chris Hipkins issued a proposal to hold fire on any fresh pay rises until 2023.

A fierce backlash and crisis talks led to the government softening its position, describing it as a starting point in negotiations.

Still, these issues are small beer compared to an election policy Jacinda Ardern's government is moving on: the remaking of the industrial relations system.

Also last week, Workplace Relations Minister Michael Wood announced plans to move from Aotearoa's largely deregulated system to one similar to Australia's modern awards system, known as "Fair Pay Agreements".

Mr Wood said the key difference would be agreements would be bargained between employers and unions rather than an independent commission in Australia.

Business groups have decried the reforms - which will be introduced to parliament later this year - as draconian and unworkable.

"There would be nothing 'fair' about Fair Pay Agreements," Business NZ chief executive Kirk Hope said.

"Any pay deals reached wouldn't be fair because the process is essentially compulsory - employers would be required to agree to what unions wanted, with compulsory arbitration if they didn't.

Australian Associated Press