The question is whether you should also be able to do a strict order by date, without regard to ranking. I'm not sure if you'd ever really want that.
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[1] California in the past week: https://www.google.com/search?q=california&tbs=qdr:w
[2] California in October of last year: https://www.google.com/search?q=california&tbs=cdr%3A1%2Ccd_...