javascript current date time

var currentDateAndTime=new Date().toLocaleString(); //"8/5/2019, 2:30:41 PM"
var currentDate=new Date().toLocaleDateString(); //"8/5/2019"
var currentTime=   new Date().toLocaleTimeString();//"2:31:56 PM"

var today = new Date();
var date = today.getFullYear()+'-'+(today.getMonth()+1)+'-'+today.getDate();
//var time = today.getHours() + ":" + today.getMinutes() + ":" + today.getSeconds();
var dateTime = date+' '+time;
The dateTime variable contains result as:

2018-8-3 //11:12:40

var today = new Date();
var time = today.getHours() + ":" + today.getMinutes() + ":" + today.getSeconds();

var today = new Date().toLocaleDateString(undefined, {
    day: '2-digit',
    month: '2-digit',
    year: 'numeric',
    hour: '2-digit',
    minute: '2-digit',
    second: '2-digit'
})

var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));

// formats below assume the local time zone of the locale;
// America/Los_Angeles for the US

// US English uses 12-hour time with AM/PM
console.log(date.toLocaleTimeString('en-US'));
// "7:00:00 PM"

// British English uses 24-hour time without AM/PM
console.log(date.toLocaleTimeString('en-GB'));
// "03:00:00"