While on tour, the pair worked together on new music, although Zedd was unsure at the time if the collaboration would result in any material.

[8] Brittany Spanos from Rolling Stone complimented the track and described it as a "breezy, hypnotic love song".

[9] Winston Cook-Wilson, in his review for Spin, wrote that "365" was "a featherweight piece of pop-house that luckily does not sound like every other Zedd song the producer has released in recent memory".

[1] Michael Love of Paper praised "365", calling it "a pretty solid pop tune from Zedd and Perry, which of course, is what also helps you stay till the end.

"[10] According to Mike Nied from Idolator, it had been "perfectly tailored for a Valentine's Day release" with its "sugary sweet lyrics".