Sets the default timezone used by all date/time functions in a script

# date_default_timezone_set

(PHP 5 >= 5.1.0, PHP 7)

date_default_timezone_set — Sets the default timezone used by all date/time functions in a script

### Descrierea

date_default_timezone_set ( string `$timezone_identifier` ) : bool

date_default_timezone_set() sets the default timezone used by all date/time functions.

> Notă:

> Since PHP 5.1.0 (when the date/time functions were rewritten), every call to a date/time function will generate a `E_NOTICE` if the timezone isn't valid, and/or a `E_WARNING` message if using the system settings or the TZ environment variable.

Instead of using this function to set the default timezone in your script, you can also use the INI setting date.timezone to set the default timezone.

### Parametri

`timezone_identifier`

  The timezone identifier, like UTC or Europe/Lisbon. The list of valid identifiers is available in the Lista zonelor orare susținute.

### Valorile întoarse

This function returns `FALSE` if the `timezone_identifier` isn't valid, or `TRUE` otherwise.

### Exemple

Example #1 Getting the default timezone

`<?php
date_default_timezone_set('America/Los_Angeles');
$script_tz = date_default_timezone_get();
if (strcmp($script_tz, ini_get('date.timezone'))){
echo 'Script timezone differs from ini-set timezone.';
} else {
echo 'Script timezone and ini-set timezone match.';
}
?>`

### Istoricul schimbărilor

Versiune | Descriere
--- | ---
5.3.0 | Now throws `E_WARNING` rather than `E_STRICT`.
5.1.2 | The function started to validate the `timezone_identifier` parameter.

### A se vedea și

- date_default_timezone_get() - Gets the default timezone used by all date/time functions in a script
- Lista zonelor orare susținute