presto-main/src/main/java/io/prestosql/type/TimeWithTimeZoneOperators.java/TimeWithTimeZoneOperators/castFromSlice
class TimeWithTimeZoneOperators:    @ScalarOperator(CAST)
    @LiteralParameters("x")
    @SqlType(StandardTypes.TIME_WITH_TIME_ZONE)
    public static long castFromSlice(@SqlType("varchar(x)") Slice value)
    {
        return parseTimeWithTimeZone(value.toStringUtf8());
    }