JavaScript convert date format

Question

how to convert this date Thu, 16 Feb 2017 08:00:00 GMT to new format like hh:mm

my code so far :

var start = new Date(this.props.item.start); // this props returns Thu, 16 Feb 2017 08:00:00 GMT
var dateStr = start.format("hh:mm")

any suggestions?

Please always remember to Google first. This is super trivial to look up. — Pekka, Feb 03 '17 at 11:52

score 0 · Accepted Answer · answered Feb 03 '17 at 11:49

0

Well for hours and minutes (hh:mm) you can use this:

var start = new Date(this.props.item.start); // this props returns Thu, 16 Feb 2017 08:00:00 GMT
var dateStr = start.getHours() + ':' + start.getMinutes();

answered Feb 03 '17 at 11:49

Z-Bone

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The string is not consistent with the [*format specified in ECMA-262*](http://ecma-international.org/ecma-262/7.0/index.html#sec-date-time-string-format) so parsing is implementation dependent. If parsed correctly, it will be considered UTC+0000, the *get\** methods will return times adjusted for the host timezone offset, which will likely differ between hosts. Lastly, the OP appears to want zero padding, so it doesn't return the required format. :-( – RobG Feb 03 '17 at 21:25

score 0 · Answer 2 · edited May 23 '17 at 12:17

0

Parsing strings with the Date constructor (or Date.parse) is not recommended, see Why does Date.parse give incorrect results?

If all you want to do is reformat the string, then just do that and avoid the vagaries of date parsing:

function getTime(s) {
  return (s.match(/\d\d:\d\d/) || [])[0];
}

console.log(getTime('Thu, 16 Feb 2017 08:00:00 GMT'));

edited May 23 '17 at 12:17

Community

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answered Feb 03 '17 at 21:17

RobG

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JavaScript convert date format

2 Answers2