On a platform metatrader and most other platform trading if your position is executed there is no the deadline to close the order, but you can be hit the swap in this means daily flowers, which is you have to pay interest or obtain flowers if your position to stay close the market for a new york still not close, depending on the type of position you opened buy or sell partner and currency you trading. In this case you can also ask you not to broker wearing the swap ( swap free ).