title: I am getting wrong value of quarters
body: <p>For below code i am getting wrong quarters. Please help  me with this issue</p>
  
  <pre><code>qy= cut.POSIXt(as.POSIXct(c("2015-09-01 IST","2016-08-1 IST")), breaks="quarter", labels=FALSE,include.lowest=T)
  qy
  # [1] 1 5
  </code></pre>