JSFiddle - React, Tailwind, and code Playground

by thanhansoft

JavaScript

var d1 = new Date('2017-11-27 20:47:17'); // 2014-01-20 12:30:00
var d2 = new Date('2017-11-27 20:49:45'); // 2014-01-21 02:30:00

// Difference between d2 and d1 in milliseconds (50400000)
var msDiff = d2 - d1;

// Convert ms to decimal minutes (840)
var minutesDiff = msDiff/60000;

// Convert ms to mintues and seconds (840:0)
var mDiff = (msDiff/60000) | 0;
var sDiff = Math.round((msDiff % 60000) / 1000); 
alert(mDiff + ':' + sDiff);