Date and Time

Date is a built-in javascript object. It stores date and time and allows methods to play around with the date and time format we want.

You can create a new date object using new Date().

new Date();

let now = new Date();
console.log(now); // prints Date and time in the format 2020-02-21T06:02:08.516Z

To print date in the local format

To create date in local format where year should be 4 digits and months starts from 0.

new Date(year, month, date, hours, minutes, seconds, ms)

let now =new Date(2020, 0, 1, 0, 0, 0, 0); 
console.log(now); // prints 2020-01-01T00:00:00.000Z

considering date = new Date() for the below methods.

Method	Description	Usage
getDay()	to get the day of the week as a number (0-6)	date.getDay()
Date.now()	to get the date and time.	let now = Date.now()
getFullYear()	to get the year as a four digit number (yyyy)	date.getFullYear();
setFullYear()	to set the year (optionally you can add month and day)	let year = date.setFullYear(2020);
getMonth()	to get the month as a number (0-11)	date.getMonth();
setMonth()	to set the month (0-11)	let month = date.setMonth(10);
getDate()	to get the day as a number (1-31)	date.getDate();
setDate()	to set the day as a number (1-31)	let day = date.setDate(20);
getHours()	to get the hour (0-23)	date.getHours();
setHours()	to set the hour (0-23)	let hrs = date.setHours(20);
getMinutes()	to get the minute (0-59)	date.getMinutes();
setMinutes()	to set the minutes (0-59)	let min = date.setMinutes(40);
getSeconds()	to get the second (0-59)	date.getSeconds();
setSeconds()	to set the seconds (0-59)	let sec = date.setSeconds(30);
getMilliseconds()	to get the millisecond (0-999)	date.getMilliseconds();
setMilliseconds()	to set the milliseconds (0-999)	let milli = date.setMilliseconds(500);
setTime()	to set the time (milliseconds since January 1, 1970)	let dateTime = date.setTime(1582268856705);
getTime()	to get the time (milliseconds since January 1, 1970)	date.getTime()