# PHP date_default_timezone_set() Function

PHP Date/Time Reference

## Example

Set the default timezone:

<?php
date_default_timezone_set("Asia/Bangkok");
echo date_default_timezone_get();
?>
Run example »

## Definition and Usage

The date_default_timezone_set() function sets the default timezone used by all date/time functions in the script.

## Syntax

date_default_timezone_set(timezone);

Parameter | Description
--- | ---
timezone | Required. Specifies the timezone to use, like "UTC" or "Europe/Paris". List of valid timezones: http://www.php.net/manual/en/timezones.php

## Technical Details

Return Value: | Returns FALSE if the timezone is not valid. TRUE otherwise
PHP Version: | 5.1+
Changelog: | From PHP 5.1.2+; This function started to validate the timezone parameter. From PHP 5.3+; Throws an E_WARNING instead of E_STRICT

PHP Date/Time Reference

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