It may be the case that the time you post does not significantly affect the total number of views it gets. Think about the front page exposure, for example: on a particularly busy moment your question spends less time on the front page than it would at a quieter time, so I'm not sure posting at a active moment helps that much.
Now, to maximise the amount of answers early on (which leads to more exposure on front page, and, in many cases, to very high-quality answers eventually, as people compete honing their answers), follow these guidelines: ;-)
- the topic shouldn't be anything obscure (preferably about C# or Java)
- the question should be pretty easy (e.g. "Why isn't there a get(index) method in a Set")
- the question might be ever so slightly provocative or controversial
(I'm not too serious about that, but it is a fact that more difficult questions, or ones concerning a little less-trodden topics, are often left without that many views, or any good answers.)