BOSTON — David Pastrnak was named the NHL’s first star of the month for January. On Saturday at the Garden, the Bruins’ superstar put dibs on the February honors.

Pastrnak enjoyed a four-point day, including a hat trick, as he outdueled the New York Rangers’ newest start J.T. Miller, who had a pair of goals, and Boston beat the Blueshirts, 6-3.

For the second Saturday matinee in a row, the opposition had pulled off a big trade the night before. J.T. Miller’s arrival with the Rangers and his installment as the first line center between Artemi Panarin and Mika Zibanejad added to the buzz that always comes with a Bruins-Rangers weekend game at the Garden.

That new Ranger line started the game and had it going early on. But Boston survived the early push by New York and took the first lead of the game at 10:21 thanks to a pair of penalties. First old friend Urho Vaakanainen took an offensive zone crosscheck.

At the tail end of that nothing-doin’ power play, Ryan Lindgren crosschecked Matt Poitras, giving the Boston a 14-second 5-on-3. Just as Vaakanainen stepped out of the box, Charlie McAvoy beat Igor Shesterkin with a bar-down shot.

You’ve read this sentence a few times about the Bruins this year, but they gave up the equalizer just 34 seconds later.

Brandon Carlo tried moving the puck up the boards, but it deflected off Panarin’s skate and right to a wide-open Miller in the slot. Miller wasted no time in ripping it over Jeremy Swayman’s glove shoulder.

But after killing a Ranger power play, the Bruins regained the lead at 17:09 on a terrific play by Matt Poitras. The youngster beat Adam Fox for a 50-50 puck behind the New York net and sent a slick feed out front to Pastrnak for his 25th goal of the season.

Boston dominated the first few minutes of the second and took a 3-1 lead at 3:39. Brad Marchand took the puck behind the net and fed Andrew Peeke at the right point. Peeke quickly sent it to the net and Charlie Coyle tipped the high shot home for his 13th goal. Ranger coach Peter Laviolette stalled to decide whether to challenge it. He decided against it but took his timeout to get his troops’ minds right.

It didn’t work.