title: Find time of highest sale for each date
body: <p>I have a list of sales by the minute, and I want to find the time that the highest sale occurred for each day.</p>
  <p>Table:</p>
  <pre><code>DATE   TIME    SALE
  1-1    01:10   10.21
  1-1    01:29   11.32
  1-2    04:34   12:32
  1-2    02:32   13:21
  1-3    11:32   12:12
  1-3    02:53   18:32
  </code></pre>
  <p>I want to be able to pull the highest value for each date with the time it occurred.</p>