Converting datetime string into single unit of time (like seconds) in Javascript

Question

I am having a lot of trouble converting a timestamp from Rails into something I can use in my Javascript.

Specifically, I have an alert set up to show the time of an event happening, and it produces a string like this: 2016-02-18T23:07:00.000-08:00. What's weird is that doesn't look like a UTC string to me (as this answer outlines), and I can't figure out what time format that is.

I have tried using this method:

  var t = "2016-02-18T23:07:00.000-08:00"
  var u = t.to_time

But that returns "undefined." Ideally, I'd like to convert this string in Javascript to seconds or milliseconds. Is that possible?

score 1 · Accepted Answer · edited Feb 19 '16 at 17:37

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var t = "2016-02-18T23:07:00.000-08:00"
var u = Date.parse(t);

edited Feb 19 '16 at 17:37

Andy

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answered Feb 19 '16 at 17:32

Hien Nguyen

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Just tried the `Date.parse`, and unfortunately it is returning NaN. Is it possible that string is not parseable? – darkginger Feb 20 '16 at 02:55
I was tried it in here : https://jsfiddle.net/8ra4j287/ .I think you should convert to Int before calculate. `var sec = Number(u);` – Hien Nguyen Feb 20 '16 at 03:45
Gave it a shot. `var sec = Number(u)` returned NaN as well. I'll investigate and report back if I figure it out. – darkginger Feb 20 '16 at 05:05

score 0 · Answer 2 · answered Apr 04 '18 at 09:36

0

Just use Moment.js:

moment('2016-02-18T23:07:00.000-08:00').format('LLL');

Returns:

February 19, 2016 8:07 AM

Or just a timestamp:

Date.parse('2016-02-18T23:07:00.000-08:00');

Works fine

https://momentjs.com

answered Apr 04 '18 at 09:36

Franck Boudraa

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Converting datetime string into single unit of time (like seconds) in Javascript

2 Answers2