How do I filter a view with a contextual filters on a custom date field? I am using the Quicktabs module to filter out posted that have a field value that in the date range specified. If you have a better solution in mind, please let me know. I am running Views 3.5 and Drupal 7.16

QuickTabs layout
I should be able to pass arguments to it to generate the new date sorted views using a contextual filter on the view.
Contextual Filters
I was able to query with the other contextual filters just fine but the date doesn't want to work at all.
What I would like to do is have a tab 4 date ranges (see first image) and clicking on the tab would load the content items with a that take place in a the range of specified dates. How can I get this to work? Is there a url query that I can pass as the argument for the start date field?
In the arguments follow the pattern

20130904--20130930


for date range between 4th September and the rest of the month.