javascript format date tutorial code example

Example 1: javascript date format

const event = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));

const options = {  year: 'numeric', month: 'short', day: 'numeric' };

console.log(event.toLocaleDateString('de-DE', options));
// expected output: Donnerstag, 20. Dezember 2012

console.log(event.toLocaleDateString('en-US', options));
// US format 


// In case you only want the month
console.log(event.toLocaleDateString(undefined, { month: 'short'}));
console.log(event.toLocaleDateString(undefined, { month: 'long'}));

Example 2: javascript format date

var options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };
var today  = new Date();

console.log(today.toLocaleDateString("en-US")); // 9/17/2016
console.log(today.toLocaleDateString("en-US", options)); // Saturday, September 17, 2016
console.log(today.toLocaleDateString("hi-IN", options));

Example 3: js set datetime

//new Date(year, month, day, hours, minutes, seconds, milliseconds)
new Date(1776, 6, 4, 12, 30, 0, 0);

// Timestamp method
new Date(-6106015800000);

// Date string method
new Date("January 31 1980 12:30");

Example 4: dates in javascript

new Date();
// Sat Jan 16 2021 22:08:57 GMT-0500 (Eastern Standard Time)
Date.now();
// 1610852869057  -> Seconds passed since Jan 1,1970

// Set the date
new Date(year, month, day hours, minutes, seconds, milliseconds)