presto-main/src/main/java/io/prestosql/operator/scalar/DateTimeFunctions.java/DateTimeFunctions/fromISO8601Timestamp
class DateTimeFunctions:    @ScalarFunction("from_iso8601_timestamp")
    @LiteralParameters("x")
    @SqlType(StandardTypes.TIMESTAMP_WITH_TIME_ZONE)
    public static long fromISO8601Timestamp(ConnectorSession session, @SqlType("varchar(x)") Slice iso8601DateTime)
    {
        DateTimeFormatter formatter = ISODateTimeFormat.dateTimeParser()
                .withChronology(getChronology(session.getTimeZoneKey()))
                .withOffsetParsed();
        return packDateTimeWithZone(parseDateTimeHelper(formatter, iso8601DateTime.toStringUtf8()));
    }