title: how to parse a date into clj-time by ignoring the time and secs
body: <p>Given the following string, I would like to get a date-time with only the date - </p>
  
  <p>String <code>"2013-02-20T17:24:33Z"</code>, I would like to get a date while ignoring the time and secs.</p>
  
  <p>The following would work - <code>(parse (formatters :date-time-no-ms) "2013-02-2T17:24:33Z")</code>. However the resulting date-time object also contains the secs, how do I trim it down to just year-month-day ? </p>
  
  <p>One way is do a regex and extract the required details and then parse it into a date -
  <code>(clojure.core/re-find #"\d{4}-\d{2}-\d{1,2}" "2013-02-20T17:24:33Z")</code>
  <code>(parse (formatters :date) "2013-02-20")</code></p>
  
  <p>However there should be a better way to the above by just using clj-time ?</p>