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date_default_timezone_set

Description

The date_default_timezone_set of Date / Time for PHP sets the default timezone used by all date/time functions in a script.

Syntax

date_default_timezone_set(
    string $timezoneId
): bool

Parameters

timezoneId

The timezone identifier, like UTC, Africa/Lagos, Asia/Hong_Kong, or Europe/Lisbon. The list of valid identifiers is available in the List of Supported Timezones.

Return

Returns false if the timezoneId isn't valid, true otherwise.

Examples

1 · timezoneId

<?

$timezoneId = "America/Los_Angeles";

$return = date_default_timezone_set($timezoneId);

var_export($return);

true

2 · date_default_timezone_get

<?

$timezoneId = "America/Los_Angeles";

date_default_timezone_set($timezoneId);

echo date_default_timezone_get();

America/Los_Angeles