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The Big Apple is at least a month away from relaxing some of its tough stay-in-place restrictions that have slowed the spread of the deadly coronavirus — and will need dramatically expanded testing from the feds before it can happen, Mayor Bill de Blasio warned Thursday.

“I don’t think it happens in April. If we really work hard we have a chance of in May or June,” de Blasio said at a City Hall press briefing Thursday, adding it would be months before life in Gotham returns to anything approaching “normal.”

Hizzoner told New Yorkers they must continue to stay home to beat the disease — and that any COVID-19 resurgence would force officials to consider even tougher lockdown provisions.

Dramatic daily jumps in hospitalizations and ventilator usage have finally begun to slow in at the Big Apple’s hospitals, but new cases continue to roll in and the city’s death toll continues to climb daily.

De Blasio made the announcement as he promised that City Hall will — for the first time — finally began releasing daily, real-time data on COVID-19 hospitalizations, ICU admissions and the percent of people testing positive for the disease.

If those three data points make sustained progress over a two-week period, the mayor will start to ease restrictions, he said.

Improvements, de Blasio cautioned, “won’t be like a nice straight line.”

The best-case scenario de Blasio laid out hopes to reduce the spread across the five boroughs to “the promised land of low-level transmission” by May or June. That would mean new cases would mostly come from outside of the city and would be rare enough the city’s health inspectors could trace their origin.

But he cannot envision decreased transmission without greater testing capacity. That has been a major weeks-long frustration for local officials across the country as the federal government continues to struggle with establishing a mass testing apparatus.

“We’re going to need more testing,” de Blasio said, adding it is unclear if the city would obtain those resources from the federal government or possibly on the international market.

“If we could get widespread testing it would start to change the entire strategy and allow us to do so much more,” de Blasio said.

“It’s not clear how and when that happens,” de Blasio said.