timezone_identifiers_list
Returns numerically index array with all timezone identifiers
&reftitle.description;
arraytimezone_identifiers_list
arrayDateTimeZone::listIdentifiers
&reftitle.returnvalues;
Returns array on success or &false; on failure.
&reftitle.examples;
A <function>timezone_identifiers_list</function> example
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&example.outputs.similar;
&reftitle.seealso;
timezone_abbreviations_list