title: Reorder time series into a custom 'quasi-chronological' order
body: <p>I have been searching for a way to sort my time series by a custom month order (March - February) instead of alphabetical, chronological, by year, etc. I want to maintain the year and I have about 60 years of data, so I can't just sort by month. I have tried converting to factor and sorting and that did not work. Here is a snippet of my data: </p>
  
  <pre><code>    Date       GageFlow  Month
  1 1955-10-01     0.00     10
  2 1955-10-02     0.00     10
  3 1955-10-03     0.00     10
  4 1955-10-04     0.00     10
  </code></pre>
  
  <p>So ideally, I'd want the time series to start 1956-03-01 and cycle through each day, month, year beginning with March instead of October. In other words, the dates should be ordered from March 1955 to Dec 1955, followed by Jan to Feb 1955, followed by March-Dec 1956 etc...</p>