presto-hive/src/main/java/io/prestosql/plugin/hive/HiveConfig.java/HiveConfig/setTimeZone
class HiveConfig:    @Config("hive.time-zone")
    public HiveConfig setTimeZone(String id)
    {
        this.timeZone = (id != null) ? id : TimeZone.getDefault().getID();
        return this;
    }