New Zealand has been in lockdown for "far too long" and needs to be at level 1 now with a transtasman bubble already operating, says Deputy Prime Minister Winston Peters.

In a revealing interview on Newstalk ZB today, he appeared to take aim at some of the Labour-led Government's decision-making around the lockdown, saying the enemy was no longer Covid-19 but the health and economic impacts caused by continuing restrictions under level 2.

He also rubbished the idea of a new public holiday - raised by Prime Minister Jacinda Ardern last week - saying it was not the right thing to be promoting "when we have had weeks off".

He also appeared to once again reveal discussions that had been happening at Cabinet.

"We have been in compulsory lockdown for far too long," Peters told Newstalk ZB's Mike Hosking. "People know they want to be out there working. Everybody who has put their heart into the future, the country's future, and their family's future realise there is only one way out of this - to think smart and work harder.

"A day off when we have had weeks off is not the right thing to be promoting as we speak."

He said it had been made clear at Cabinet that his party, New Zealand First, believed that the process of moving down to level 1 was taking too long.

"The Prime Minister has actually admitted that - at the Cabinet meeting she said it, there was serious concerns from New Zealand First that this was taking too long and we should have got out of this into a better space as fast as possible.

"Every day, every hour, every week we delay - we put back our recovery."

He acknowledged that the health experts and their evidence were important.

But he felt the country had been "too cautious for too long now, you have to look at the percentages and say are we 98, 99 per cent safe? If we are we've got to risk it and get going."

Otherwise far more people would die from depression and concerns about their finances than from the pandemic, he said.

"The enemy we've got now is not Covid-19, it's actually the inability to turn this economy around... as fast as possible."

He said New Zealand should be at level 1 now and the transtasman bubble - allowing New Zealanders and Australians to travel between each country without quarantining - should be operating now.

Asked why he wasn't doing more as Deputy Prime Minister, he indicated NZ First's voice at the Cabinet table could be more influential with a better percentage of the party vote at the next election and Kiwis "wised up".

Peters also clarified his position on Labour's flagship light rail project for Auckland after raising doubts about the project's future yesterday.

He told Hosking it was not on NZ First's radar right now during the Covid-19 pandemic.

"The announcement of it being put on hold has already been made," he said.

Labour campaigned in 2017 on building light rail from the city's CBD to the airport, and from the CBD to West Auckland, within 10 years.

Prime Minister Jacinda Ardern promised to build light rail to Mt Roskill within four years.

The massive project is now worth $6 billion but has so far made slow progress, with rumoured cost blowouts and no decision made yet on who will build the scheme.

Peters yesterday said planning for the project had been suspended - just hours after his fellow Cabinet minister Phil Twyford said the Government was "highly motivated" to progress the project.

Pressed on what was going on, Twyford sounded upbeat and said the decision on a delivery partner was moving through the Cabinet process.

"With Cabinet processes, it's never a good idea to put an exact timeframe on [the decision] in terms of days or weeks – but soon."

But on his way into the House on Tuesday afternoon, Peters undermined that position.

"It's not going to happen in the immediate term," he said, adding that costs had blown out massively.

"We've always been for heavy rail around this country. Our programme is on target, as you know, and light rail has been suspended in terms of planning for the immediate future."

The $6 billion light rail project is currently on hold as the Government focuses towards on Covid-19.

This month, Twyford's office confirmed that a funding decision for modern-day trams was "on pause at the moment" because a decision on which delivery partner the Government worked with was on hold.

The task has proven more difficult than Labour politicians envisaged, with a business case for the CBD to airport line still being worked on months after it was due in December 2018.

Since then there has been ongoing back-and-forth about who will build the scheme, with NZTA and NZ Infra the two bidders.

An analysis of both bids has been completed, but the winner is yet to be decided.