Date to number JS function not working as expected

Summary

I am using below JS function for convert date to number

Content

I am using below  JS function for convert date to number  

In Browser it working and give a result as 11572923446000

But OIC provides NaN as a result.

 

Is any parser problem in Code?

Any default function is there convert date to number!

 

function dateToNumber(datetoNum){

  var NumberDate = Date.parse(datetoNum);

   return NumberDate; 
}

var dateVar = dateToNumber('11-05-2019 03:10:46 UTC')