How to convert date in milliseconds to iso format javascript?

Question

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How do I output an ISO-8601 formatted string in Javascript?

If I have an integer that represents a date in milliseconds, what is the syntax to convert this to an iso format?

@Xander - Could be Unix epoch, but who knows? Perhaps some other epoch? — Oded, Dec 26 '12 at 20:49
@Asad - Chances are [ISO 8601](http://en.wikipedia.org/wiki/ISO_8601). — Oded, Dec 26 '12 at 20:50
what have you tried? `Date` sounds like a good place to start, as does MDN IMHO — Elias Van Ootegem, Dec 26 '12 at 20:51
@LastCoder That is the reverse of what the OP is asking for. — Asad Saeeduddin, Dec 26 '12 at 20:54
@Asad - the answers in the linked question show the "new Date(ms).toISOString()" as well as an implementation for toISOString if it's not available. I think this is a case of the symmetric property of Q&A :) — Louis Ricci, Dec 27 '12 at 13:27
@LastCoder I can't seem to find `toISOString` on that page at all. — Asad Saeeduddin, Dec 27 '12 at 13:37
@Asad - Indeed! http://stackoverflow.com/questions/2573521/how-do-i-output-an-iso-8601-formatted-string-in-javascript is the one I intended to select for the duplicate, something must of went awry (clearly PEBKAC because the question titles were so similar). — Louis Ricci, Dec 27 '12 at 15:56
@LastCoder That one is perfect. I'll try to get the question reopened and closed as a duplicate of that one. — Asad Saeeduddin, Dec 27 '12 at 16:02

Bergi · Accepted Answer · 2012-12-26T20:57:19.683

15

Check out the Date object:

new Date(ms).toISOString()

Notice that this method might not be available in older browsers, but you can shim it for them.

edited Dec 26 '12 at 20:57

answered Dec 26 '12 at 20:50

Bergi

score 0 · Answer 2 · answered Dec 26 '12 at 20:49

0

new Date(value);

from here, where value represent the milliseconds since 1970. And you could then call toISOString on yr date object.

answered Dec 26 '12 at 20:49

NimChimpsky

2 Answers2