JavaScript method setUTCHours() to set hours (0 - 23) according to Universal Time (UTC)

Definition and Usage

The setUTCHours() method is used to set the hours (0 - 23) based on Universal Time (UTC).

Syntax

dateObject.setUTCHours(hour,min,sec,millisec)

secmillisec

Parameters	Description
hour	Required. The value of the hour field to set for the dateObject. This parameter is an integer between 0 ~ 23.
min	##Optional. The value of the minutes field to set for the dateObject. This parameter is an integer between 0 ~ 59.
	Optional. The value of the seconds field to set for the dateObject. This parameter is an integer between 0 ~ 59.
	Optional. The value of the milliseconds field to set for the dateObject. This parameter is an integer between 1 ~ 999.

Note

If the min, sec and millisec parameters are not specified, the values ​​returned from the getUTCMinutes, getUTCSeconds and getUTCMilliseconds methods are used.

If the parameters you specify are outside the specified range, setUTCHours attempts to update the date information in the Date

object accordingly. For example, if the value of the sec parameter is 100, then 1 minute (min + 1) is added, and the number of seconds is 40.

Return value

Adjusted date expressed in milliseconds.

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 set the UTC hours to 23 through the setUTCHours() method:

<script type="text/javascript">

var d = new Date();d.setUTCHours(23);document.write(d);

</script>

Output:

Example 2

In this example, we will set the UTC hour to 23:15:06 through the setUTCHours() method:

<script type="text/javascript">

var d = new Date();d.setUTCHours(23,15,6);document.write(d);

</script>

Output:

Thu Nov 09 2017 07:15:06 GMT+0800 (中国标准时间)

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