get UTC timestamp from formated date - javascript

Question

I have a UTC date string -> 10/30/2014 10:37:54 AM

How do I get the timestamp for this UTC date? As far as I know, following is handling this as my local time

var d = new Date("10/30/2014 10:37:54 AM");
return d.getTime();

Thank you

Answer 1

You can use Date.UTC to create a UTC format date object.

Reference:

• Stackoverflow
• MDN

 (function() { var d = new Date(); var d1 = new Date(Date.UTC(d.getFullYear(), d.getMonth(), d.getDate(), d.getHours(), d.getMinutes(), d.getSeconds())); console.log(+d); console.log(+d1); })() 

Answer 2

如果格式是固定的，则可以轻松解析它并使用Date.UTC（） API。

Answer 3

You can decrease the "TimezoneOffset"

var d = new Date("10/30/2014 10:37:54 AM");
return d.getTime() - (d.getTimezoneOffset() *1000 * 60);

Also u can use the UTC function

var d = new Date("10/30/2014 10:37:54 AM");
return Date.UTC(d.getFullYear(),d.getMonth()+1,d.getDate(),d.getHours(),d.getMinutes(),d.getSeconds());

Answer 4

A quick hack would be to append UTC to the end of your string before parsing:

var d = new Date("10/30/2014 10:37:54 AM UTC"); 

But I would advise you to use a library like moment.js, it makes parsing dates much easier

Answer 5

Try Date.parse

var d = new Date("10/30/2014 10:37:54 AM");
var timstamp = Date.parse(d) / 1000;

Answer 6

Hope this helps:

Date date= new Date();
  SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  SimpleDateFormat sdf2 = new SimpleDateFormat("HH:mm:ss");

    date = sdf.parse(date.toString());
    String timestamp = sdf2.format(date);