JSFiddle - React, Tailwind, and code Playground

by jwerre

JavaScript

save_history = ["Tue Nov 13 2012 09:47:39 GMT-0800 (PST)", "Tue Nov 13 2012 09:47:44 GMT-0800 (PST)", "Tue Nov 13 2012 09:47:45 GMT-0800 (PST)", "Tue Nov 13 2012 09:47:46 GMT-0800 (PST)", "Tue Nov 13 2012 09:47:47 GMT-0800 (PST)"]

var total = 0;  

save_history.each(function(i){
 total += new Date(i).getTime();
 console.log(new Date(i))   
});    

average = new Date().getTime() - new Date(total/save_history.length).getTime()
hours = average/3600000
document.write(hours)