How To Convert Milliseconds To A Date String?

I get a miliseconds string from the server like this: 1345623261. How can i convert this into a normal date format, e.g. 30.08.2012? I attempted using setMilliseconds, like so: new

Solution 1:

Assuming time_posted is a number representing timestamp, which is expressed in seconds (judging by the number of digits) - multiply it by 1000 to get a representation in milliseconds, and pass the result to the Date's constructor:

(newDate(time_posted * 1000)).toLocaleString();
    // -> "Wed Aug 22 2012 11:14:21 GMT+0300 (Jerusalem Daylight Time)"

To take this a bit further and achieve something closer to what you denoted in the question, use toLocaleDateString(), which will produce a more human-readable form:

(newDate(time_posted * 1000)).toLocaleDateString();
    // -> "Wednesday, August 22, 2012"

Reference

• Date on Mozilla Developer Network