Question

If I have a JSON DateTime:

"DateCreated":"\/Date(1301692095627)\/"

How can I format that into a 12 hour time using jQuery?

Right now I’m using this:

function DateDeserialize(dateStr) {
    return eval('new' + dateStr.replace(/\//g, ' '));
}

Which outputs the JSON object as:

Fri Apr 01 2011 17:08:15 GMT-0400 (Eastern Daylight Time)

But I would like to get just the time, in 12 hour format.

Answer 1

Use the .getHours() method on the date object (which returns 0-23). Check to see if it’s over 12 hours, if so, subtract 12 hours otherwise it’s already fine.

see this jsFiddle: http://jsfiddle.net/s2hyL/1/

var hrs = new Date().getHours();

var hrs12 = hrs > 12 ? hrs - 12 : hrs;

If you need to perform formatting (or complex parsing), I highly recommend the date.js library by Matt Kruse.