date_default_timezone_set
PHP 5 >= 5.1.0, PHP 7, PHP 8
date_default_timezone_set - Sets the default timezone used by all date/time functions in a script
Manual
date_default_timezone_set(
string$timezoneId ): bool
date_default_timezone_set sets the default timezone used by all date/time functions.
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.
Parameters
- timezoneId
-
The timezone identifier, like UTC, Africa/Lagos, Asia/Hong_Kong, or Europe/Lisbon. The list of valid identifiers is available in the .
Return Values
This function returns false if the timezoneId isn't valid, or true otherwise.