@Override
    public TimeZone getUseTimeZone() {
        return useTimeZone;
    }
Gets preferred time zone. When {@link #isUseServerTimeZone()} is
{@code true}, this returns same time zone as {@link #getServerTimeZone()}.

@return non-null preferred time zone
clickhouse-client/src/main/java/com/clickhouse/client/ClickHouseConfig.java