如何在高图表中显示从当前时间（hh：mm）12小时格式开始的最近五个小时的时间？

Question

i am new to high charts and UI side development, i need to display the chart with last five hours on x-axis from current time in 12 hour format. please share your suggestion or jsfiddle here

Answer 1

Return the number of milliseconds since 1970/01/01:

var d = new Date();
var n = d.getTime();

The result of n could be:

1460565067992

Then we substract 5 hours in milliseconds

var x= n-18000000

and we instantiate a new Date object based on this value

var lastFiveHours = new Date(x)

  var d = new Date(); var n = d.getTime(); console.log("Current date" + d); $("#currentDate").html(d); var x= n-18000000 var lastFiveHours = new Date(x) console.log("Current date - five hours" + lastFiveHours); $("#currentDateFiveH").html(lastFiveHours); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="currentDate"></div> <div id="currentDateFiveH"></div>