How to convert time milliseconds to hours, min, sec format in JavaScript?

Question

I have the time as milliseconds, but I want the time after conversion like 00:00:00.

Ex: In milliseconds=86400000. I want how many hours in that millise

Answer 1

my solution

var sunriseMills = 1517573074000;         // sunrise in NewYork on Feb 3, 2018  - UTC time
var offsetCityMills = -5 * 3600 * 1000;   // NewYork delay to UTC 
var offsetDeviceMills =  new Date().getTimezoneOffset() * 60 * 1000 ;  // eg. I live in Romania (UTC+2) >> getTimezoneOffset() = 120

var textTime = new Date(sunriseMills + offsetCityMills + offsetDeviceMills) 
    .toLocaleTimeString('en-US', { hour: 'numeric', minute: 'numeric' });

textTime will become '7.04 AM'