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<?php var_dump((new \IntlDateFormatter('en_US', IntlDateFormatter::NONE, IntlDateFormatter::SHORT, 'Asia/Sakhalin'))->format(unserialize('O:8:"DateTime":3:{s:4:"date";s:26:"2017-07-03 00:00:00.000000";s:13:"timezone_type";i:3;s:8:"timezone";s:10:"Asia/Sakhalin";}')));

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