PHP timezone_name_from_abbr() Function

The PHP timezone_name_from_abbr() function returns the timezone name from abbreviation.

Syntax

timezone_name_from_abbr(abbr, utcOffset, isDST)

Parameters

`abbr`	`Required.` Specify the timezone abbreviation.
`utcOffset`	`Optional.` Specify the offset from GMT in seconds. Defaults to -1 which means that first found time zone corresponding to abbr is returned. Otherwise exact offset is searched and only if not found then the first time zone with any offset is returned.
`isDST`	`Optional.` Specify the daylight saving time indicator. Default is -1. Possible values are: -1 : Indicates whether the timezone has daylight saving or not is not taken into consideration when searching. 1 : Indicates that the utcOffset is an offset with daylight saving in effect. 0 : Indicates that the utcOffset is an offset without daylight saving in effect. If abbr doesn't exist then the time zone is searched solely by the utcOffset and isDST.

Return Value

Returns time zone name on success or false on failure.

Example:

The example below shows the usage of timezone_name_from_abbr() function.

<?php
  //getting the time zone name for "PST"
  echo "1. ".timezone_name_from_abbr("PST")."\n";

  //getting the time zone name for "EST"
  echo "2. ".timezone_name_from_abbr("EST")."\n";

  //getting the time zone name for "CET"
  echo "3. ".timezone_name_from_abbr("CET")."\n"; 

  //getting the time zone name using 
  //utcOffset and isDST parameters
  echo "4. ".timezone_name_from_abbr("", 3600, 1)."\n"; 
  echo "5. ".timezone_name_from_abbr("", 7200, 1)."\n";   
?>

The output of the above code will be:

1. America/Los_Angeles
2. America/New_York
3. Europe/Berlin
4. Europe/London
5. Europe/Paris

❮ PHP Date and Time Reference