Question

Hi I am trying to create a variable today that is the current date today. I am trying to add 106 days to it which works successfully. Then I am trying to create a second variable today2 and subtract 31 days from the ‘today’ variable (current date + 106 -31). This part is not working. This is what it is giving me…

Thu Mar 28 11:52:21 EDT 2013
Tue Nov 27 11:52:21 EST 2012

The second line is not 31 days before the first line. Can someone help me correct this?

Feel free to play with my jsfiddle http://jsfiddle.net/fjhxW/

<div id="current"></div>
<div id="current2"></div>
<div id="current3"></div>

var today = new Date();
var today2 = new Date();

today.setDate(today.getDate() + 106);

today2.setDate(today.getDate() - 31);  

var dd = today.getDate();
var mm = today.getMonth(); //January is 0!
var yy = today.getFullYear();

document.getElementById('current').innerHTML = today;
document.getElementById('current2').innerHTML = today2;

Answer 1

it’s Xmas time so I give the answer just to copy/paste:

var oneDay = 24 * 60 * 60 * 1000, // 24h
    today = new Date().getTime(), // in ms
    firstDate,
    secondDate;

firstDate = new Date(today + 106 * oneDay);
secondDate = new Date(firstDate.getTime() - 31 * oneDay);