CFDs are a leverage product and can involve a significant risk of loss. Trading CFDs may not be suitable for all, therefore you should ensure that you understand the risks involved and take into account your individual circumstances.
Trader's Glossary

What is GTD (Good Till Date/Time)?

GTD orders are pending orders which can be set to remain valid until a specified future date. If a GTD order has not been filled by this future date it is automatically cancelled.