How to convert the sunset UNIX timestamp from OpenWeather API to local time using JavaScript?

I’m using the OpenWeather API to get the sunset time for a specific city. The API returns the sunset time as a UNIX timestamp, and I want to convert this timestamp into the local time of the specific city using JavaScript.

  "sys": {
    "type": 1,
    "id": 5122,
    "country": "US",
    "sunrise": 1587168307,
    "sunset": 1587216456
  },

I’ve tried creating a new Date object using the sunset timestamp like this:

var sunsetTimestamp = 1587216456;
var sunsetDate = new Date(sunsetTimestamp);
console.log(sunsetDate)

However, this doesn’t give me the correct local time of sunset.