There's been a fair bit of confusion about the timeline for the debt-ceiling crisis. The date Oct. 17 gets tossed around a fair bit as a hard deadline. But that's probably not the date when we'll see lots of financial disruptions if Congress fails to lift the debt ceiling.
The real crises are likely to occur a little later in October or early November. But even that's not certain.
And from the Center of Bipartisan Policy from which the above article was based: