We'd like to do a lot more with dates, but don't have great data for them yet.

If you use our sort by date feature (for recent pages) there is a date displayed next to each domain. You can get to that feature by selecting it in the drop down next to the search box or by typing s:d at the end of the query (which is short for sort:date).

 

You can also get the Google date filter ranges easily using our bang syntax. To do that, you can do !gyear test to search for 'test' on Google for pages in the last year. !gmonth, !gweek, etc. work as well.