Moment timezone returning property 'preparse' of null

Question

While trying to parse a certain date

moment('07/07/2018', 'MM/DD/YYYY', 'Asia/Bangkok')

I receive the error typeError: cannot read property 'preparse' of null

http://jsfiddle.net/uq99udc9/7978/

Answer 1

You have to use moment.tz instead of moment(String) since you are passing the timezone ('Asia/Bangkok') parameter.

Your code could be like the following:

moment.tz('07/07/2018', 'MM/DD/YYYY', 'Asia/Bangkok')

Here a working snippet based on the linked fiddle:

$(function(){
  setInterval(function(){
    var divUtc = $('#divUTC');
    var divLocal = $('#divLocal');  
    //put UTC time into divUTC  
    divUtc.text(moment.utc().format('YYYY-MM-DD HH:mm:ss'));      
    
    //get text from divUTC and conver to local timezone  
    var localTime  = moment.utc(divUtc.text()).toDate();
    localTime = moment(localTime).format('YYYY-MM-DD HH:mm:ss');
    divLocal.text(localTime);  
      
    $('#divT').text(moment.tz('07/07/2018', 'MM/DD/YYYY', 'Asia/Bangkok').format('YYYY-MM-DD HH:mm:ss'));
  },1000);
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.2/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment-timezone/0.5.17/moment-timezone-with-data-2012-2022.min.js"></script>

UTC<br/>
<div id="divUTC"></div><br/>
Your Local Time with respect to above UTC time<br/>
<div id="divLocal">
</div>    
<br/>Thailand date time<br/>
<div id="divT">
</div>