JavaScript getDay Function

JavaScript getDay function is one of the Date Functions, which is useful for returning the Day number from a given date. The value returned by this getDay number will be : 0 is Sunday, 1 is Monday, 2 is Tuesday, etc.

The following example helps you understand the get Day Function. Here, we use getDay to return the day number (Day of the Week number) from the current date and time.

<!DOCTYPE html>
<html>
<head>
    <title> JS </title>
</head>
<body>
    <h1> Example </h1>
<script>
  var dt = Date();  
  document.write("Date and Time :  " + dt);
  document.write("Day : " + dt.getDay());
</script>
</body>
</html>
Example

Date and Time: Sat Nov 03 2018 16:34:32 GMT+0530 (Indian Standard Time)
Day : 6

In this JavaScript get Day function example, we are extracting the day number from the custom date.

<!DOCTYPE html>
<html>
<head>
    <title> JavaScriptDateFunctions </title>
</head>
<body>
    <h1> JavaScriptgetDayFunctionExample </h1>
<script>
  var dt = Date("January 22, 2014 10:09:07");
  document.write("Date and Time : " + dt);
  document.write("Day from getDay(): " + dt.getDay());
</script>
</body>
</html>
JavaScript getDay Function Example