Javascript Date getDay()

Introduction

Javascript Date getDay() returns the date's day of the week as a number.

0 represents Sunday and 6 represents Saturday. 

var d = new Date('December 25, 2020 23:15:30');
var weekday = d.getDay();

console.log(weekday); // 1

Return the name of the weekday: 

var d = new Date(); 
var weekday = new Array(7); 
weekday[0] = "Sunday"; 
weekday[1] = "Monday"; 
weekday[2] = "Tuesday"; 
weekday[3] = "Wednesday"; 
weekday[4] = "Thursday"; 
weekday[5] = "Friday"; 
weekday[6] = "Saturday"; 
var n = weekday[d.getDay()];
console.log(n);/*w w  w  .  ja  v a2 s .  c  o m*/

To get the full name of a day ("Monday" for example), use Intl.DateTimeFormat. 

var options = { weekday: 'long'};
var d = new Date('December 25, 2020 23:15:30');
console.log(new Intl.DateTimeFormat('en-US', options).format(d));
console.log(new Intl.DateTimeFormat('de-DE', options).format(d));



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