New Yorkers and folks all across the US are ready for Monday’s epic moon shadow.

New York’s view of the “Great American Eclipse” — when the moon will align with the sun in a path visible from coast to coast for the first time in 99 years — begins at 1:23 p.m. Monday and ends at 4 p.m., with a two-minute peak of darkness at 2:44 p.m.

It won’t be a total blackout in the city — New York will see a 71 percent eclipse. But it will still be quite a show.

Once you take the proper precautions, including donning special NASA-approved solar eclipse glasses, “[just] look up,” said Laurie Cantillo, a rep with the Planetary Science Division at NASA.

“Try to get into an open area where you can get a good, clear view of the sun . . . maybe some areas in Central Park,” she told The Post.

A rooftop would be a great place to watch, she said.

But “you’re going to be in trouble in Midtown with all the buildings and highrises unless the sun is directly overhead at the time.”

The best places to see the sun will be toward the southwestern edges of the city, said Dave Dombek, a senior meteorologist for Accuweather.

Just don’t stare directly into the sun, officials said.

State health officials recommend wearing special solar eclipse glasses marked “ISO 12312-2.”

You could also try a homemade science project — fashioning a cardboard box, some aluminum foil, tape and scissors into a makeshift sidewalk projector to safely capture an image of the eclipse.

Regular sunglasses won’t work in protecting your eyes from the potentially retina-burning sun. Solar radiation could kill cells, resulting in temporary or permanent blindness.

Even telescopes, binoculars and cameras must be equipped with a special solar filter for viewing.

The eclipse will be total over a 70-mile-wide swath of the US starting near Lincoln City, Ore., and finishing at Charleston, SC.

“It looks like we’ve got good weather for [viewing],” Dombek said.

For anyone who can’t get out of the office and onto the street for the show, NASA will be livestreaming the whole event, with cameras stationed all across the country.

NASA has balloons ready at 75,000 feet to catch it in action, and the International Space Station will be capturing shots as well.

The last time there was a total eclipse in the US was 38 years ago in the Northwest, but it did not cross over most of the country.