javascript get current date and 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();

date.toString('YYYY-MM-dd'); 'Tue Feb 10 2015 15:42:50'

var date = new Date('4-1-2015');

date.getDay();// returns 3    

date.getYear();// returns 115, no of years after 1900

date.getFullYear();// returns 2015 

date.getMonth();// returns 3, starting 0 with jan 

date.getUTCDate();// returns 31 

var d= new Date();
d.getFullYear();//Get the year as a four digit number (yyyy)
d.getMonth();//Get the month as a number (0-11)
d.getDate();//Get the day as a number (1-31)
d.getHours();//Get the hour (0-23)
d.getMinutes();//Get the minute (0-59)
d.getSeconds();//Get the second (0-59)
d.getMilliseconds();//Get the millisecond (0-999)
d.getTime();//Get the time (milliseconds since January 1, 1970)

const handleTime = (dataD) => {
    let data= new Date(dataD)
    let hrs = data.getHours()
    let mins = data.getMinutes()
    if(hrs<=9)
       hrs = '0' + hrs
    if(mins<10)
      mins = '0' + mins
    const postTime= hrs + ':' + mins
    return postTime
  }

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"