JavaScript Calc Year and Month between 2 Dates

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How do I get the difference between two Dates in JavaScript?

I wanted to know how javascript can count the years and months between two dates. So for example between 26/10/2012 and 26/11/2013, there are 1 year and 1 month

I have tried it so but it is wrong :(

var diff =  (new Date(y, m - 1, d).getTime(2011,(11-1),26) - new Date(2012, (11-1), 26).getTime()) / 1000 / 60 / 60 / 24 / 30;

@Sibu: The problem is noone is answering his questions – J. K. Oct 26 '12 at 12:19 — J. K., Oct 26 '12 at 12:19

Mitch Satchwell · Answer 1 · 2013-07-01T07:46:57.130

3

Assuming two dates, d1 and d2, where d2 is the greater of the two:

var month_diff = (d2.getFullYear() - d1.getFullYear()) * 12 + d2.getMonth() - d1.getMonth();
var years = floor(month_diff / 12);
var months = month_diff % 12;
alert(years + 'years and ' + months + ' months');

If your requirement is only to count full months you could add the following after the first line:

if (d2.getDate() - d1.getDate() < 0 && month_diff > 0) {
   month_diff--;
}

edited Jul 01 '13 at 07:46

answered Oct 26 '12 at 12:16

Mitch Satchwell

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for instance, d1 = 2013.10.5, d2 = 2014.1.3, the return month should be 2, NOT 3 – jason Jun 24 '13 at 08:45
Updated answer with details on how to only count full months. – Mitch Satchwell Jun 24 '13 at 09:53

JavaScript Calc Year and Month between 2 Dates

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