IpInfoDb - Uncaught TypeError: Argument 11 passed to Geocoder\Model\Address

While testing IpInfoDb with IP 1.143.27.182 I got Uncaught TypeError: Argument 11 passed to Geocoder\Model\Address::__construct() must be of the type string or null, bool given

IpInfoDB response:

  'statusCode' => string 'OK' (length=2)
  'statusMessage' => string '' (length=0)
  'ipAddress' => string '1.143.27.182' (length=12)
  'countryCode' => string 'AU' (length=2)
  'countryName' => string 'Australia' (length=9)
  'regionName' => string 'Victoria' (length=8)
  'cityName' => string 'Geelong' (length=7)
  'zipCode' => string '3220' (length=4)
  'latitude' => string '-38.1471' (length=8)
  'longitude' => string '144.361' (length=7)
  'timeZone' => string '+11:00' (length=6)

$timezone = timezone_name_from_abbr('', (int) substr($data['timeZone'], 0, strpos($data['timeZone'], ':')) * 3600, 0);
timezone_name_from_abbr('', 39600, 0) // Melbourne Australia is observing DST so this does not work

The proper fix is to handle DST time or at the very minimum handle the case of timezone returning false which breaks Geocoder\Model\Address.

Reproduce the IpInfoDb lookup with IP 1.143.27.182 and inspect the timezone conversion around timezone_name_from_abbr(). Confirm the behavior when DST makes the lookup return false, then verify that the resulting Address construction no longer receives a boolean.