title: Setting axes ranges/limits for time series data (HH:MM:SS)
body: <p>I'm working with time series data in R. Specifically, I am trying to plot a dependent variable (Download Speed) against a time (between 0:00:00 and 24:59:59) during which the data point was captured. </p>
  
  <p>However, I am having trouble setting limits on the x-axis. I want the axis to start at 00:00:00 and end at 24:59:59. I am using the following function:</p>
  
  <pre><code>plot(dt$Time, dt$Download, main = 'Download Speed Over the Course of a Day', xlab = 'Hour', ylab = 'Mb/s')
  </code></pre>
  
  <p>Where dt is a table containing the variables "Time" and "Download". I think I should be using the <code>xlim</code> argument but I'm having a tough time with it.</p>
  
  <p>Here is a sample section of the data:</p>
  
  <p><code>4/24/2017  22:23:05    33.62   5.65    30.751
  4/24/2017   23:23:30    38.88   5.64    42.49</code></p>
  
  <p>Thanks</p>