The JavaScript method getUTCDay() returns a number representing the day of the week based on universal time.-JS Tutorial-php.cn

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The JavaScript method getUTCDay() returns a number representing the day of the week based on universal time.

黄舟

Nov 06, 2017 pm 01:16 PM

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Definition and Usage

The getUTCDay() method returns a number representing the day of the week based on universal time.

Syntax

dateObject.getUTCDay()

Return value

dateObject When expressed in universal time, returns a day of the week, the value is 0 (Sunday) ~ 6 (Saturday) a value.

Tips and Notes:

Note: This method is always used in conjunction with a Date object.

Tip: For more information about Universal Coordinated Time (UTC), please refer to Baidu Encyclopedia.

Example

Example 1

In this example, we will get the current UTC day of the week (as a number):

<script type="text/javascript">

var d=new Date()
document.write(d.getUTCDay())

</script>

Output:

Example 2

Now, I will create an array so that the above example can output the name of the week instead of just a number:

<script type="text/javascript">

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"

document.write("Today it is " + weekday[d.getUTCDay()])

</script>

Output:

Today it is Monday

The javascript Date.getUTCDay() method returns the day of the week on the specified date according to universal time. The value returned by getUTCDay is an integer corresponding to the day of the week: 0 for Sunday, 1 for Monday, 2 for Tuesday, and so on.

Example:

<html>
<head>
<title>JavaScript getUTCDay Method</title>
</head>
<body>
<script type="text/javascript">
  var dt = new Date( "December 25, 1995 23:15:20" );
  document.write("getUTCDay() : " + dt.getUTCDay() ); 
</script>
</body>
</html>

This will produce the following results for India time zone:

getUTCDay() : 1

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