How long does it take to conduct a future trading,

[steelcat]

I have a demo account.

The information is here:

sep euro - 72.70
oct oil - 939.1

if I want to make a order: I need to indicate month\year.

so if I want to make a oil order now, The order will only be conducted at the end of sep (30th of sep), or the end of oct(31th of oct)? ( must be the end of the month I indicated)

 

[Rhody Trader]

You really need to read up on the futures market much more. You seem to be confusing a few different aspects to it. When you place a trade it executes based on the type of order you're using (market orders execute immediately, stop orders execute when the price is hit, etc.). The month of the contract is when settlement/delivery takes place if you hold your position that long. And the settlement/delivery dates are generally not the last day of the month. They vary considerably by market.