JSFiddle - React, Tailwind, and code Playground

by jfriend00

JavaScript

var prevTime = new Date(2011,1,1,0,0);  // Jan 1, 2011
var thisTime = new Date();              // now
var diff = thisTime.getTime() - prevTime.getTime();   // now - jan 1
alert(diff / (1000*60*60*24));     // positive number of days