JSFiddle - React, Tailwind, and code Playground

JavaScript

var myArr = [["2012-10-10 03:47:00.0", 23.400000000000002], ["2012-10-10 03:52:00.0", 23.3]];


var date = convertDateTime(myArr[0][0]);
console.log(date);

function convertDateTime(dateTime){
    dateTime = myArr[0][0].split(" ");
    
    var date = dateTime[0].split("-");
    var yyyy = date[0];
    var mm = date[1]-1;
    var dd = date[2];
    
    var time = dateTime[1].split(":");
    var h = time[0]; 
    var m = time[1];
    var s = parseInt(time[2]); //get rid of that 00.0;
    
    return new Date(yyyy,mm,dd,h,m,s);
}