![]() It is then possible to change the timezone of an existing DateTime object using the setTimezone() method: $date->setTimezone(new DateTimeZone('Europe/Amsterdam')) It is possible to specify the timezone while creating a DateTime object by passing it as the second parameter: $date = new DateTime('', new DateTimeZone('America/Los_Angeles')) When created and when otherwise not specified, PHP dates/times are created in the default timezone. Setting the Timezone for a Specific PHP DateTime Objectįinally, it’s possible to change the timezone for a specific PHP DateTime object. You can confirm the change affects PHP globally by using phpinfo(). You may need to reboot your web server to see the change take effect. Their location will depend on your system configuration but usually can be found in /etc/php/ on Linux.Īdd or update the line: date.timezone = "America/Los_Angeles" Make sure you change the one you need to change or both. Note that it is common for there to be a configuration file for both the CLI (Command Line Interface) and a separate configuration file used by the webserver serving PHP applications (e.g., Apache). If you wish to change the timezone globally in PHP so that the default timezone for all PHP scripts executed on the system is changed, you will need to edit the php.ini file. Setting Timezone for the System Globally in php.ini The change made by calling this function is not permanent and does not apply to anything outside of the script’s execution. date_default_timezone_set('America/Los_Angeles') Ībove, the script’s timezone has been changed, and the change is confirmed using date_default_timezone_get(). It would return true if it successfully sets the timezone or false if an invalid timezone was supplied. This function accepts a single parameter – a timezone from the list of supported timezones. The syntax is as follows: date_default_timezone_set ( $timezoneId ) It should be used towards the beginning of the script before any DateTime objects are created to be all created with the same default timezone. The following function will set the timezone for the script it is run in only. Setting the Default Timezone for a Script Which will output (obviously with your configured timezone): Europe/Amsterdam Here it is in action: echo date_default_timezone_get() If neither of the above is properly set, all dates will default to the UTC timezone.The timezone is configured in the PHP date.timezone ini option (usually via the php.ini configuration file).The timezone set using date_default_timezone_set().In order of precedence, the timezone to be used is either: This function accepts no parameters and will return the timezone used for DateTime objects in the currently running PHP script. To find out what timezone will be used in a script, run the following function anywhere in the script: date_default_timezone_get() Finding Out What Timezone Will be Used in a PHP Script It’s a long list – so rather than reproduce it, here it is in the official PHP docs: When setting your timezone, only valid timezone values are allowed (For example, ‘Europe/Amsterdam’). These variables contain multiple pieces of information about a given date/time – the time itself and the timezone it is in. This article will refer to PHP DateTime objects. PHP provides several tools to make timezone handling easier, allowing you to set the default timezone for the system, a script, or a specific DateTime object. ![]() If your app has users from around the world, you’ll eventually run into the annoying task of ensuring that date handling works effectively for everyone – including the accuracy of times displayed and the format they are displayed in. This article provides a combined tutorial for the PHP timezone functions, showing how to change the timezone globally or temporarily for a script/object.
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