title: ValueError: year 0 is out of range seaborn
body: <p>I am struggling to plot a simple time series with seaborn and can't understand why this hasn't work. My dataframe <code>time_series</code> give daily data for patients from 2015 to 2019 and also has a <code>datetime</code> index.It looks as such:</p>
  
  <pre><code>            patients
  Date                
  2015-01-04        49
  2015-01-05        51
  2015-01-06        48
  2015-01-07        30
  2015-01-08        27
  </code></pre>
  
  <p>I am trying to build a scatter plot, however upon building it, it starts at 2000 and therefore all the data points are to the right of the graph. I tried to counter this by setting an <code>xlim</code> but am receiving a strange error. My code is as such:</p>
  
  <pre><code>import seaborn as sns
  import matplotlib.pyplot as plt
  
  sns.scatterplot(x=time_series.index, y=time_series['patients'])
  plt.xlim(2015,2019)
  </code></pre>
  
  <p>This is the error which I don't understand as I have no year '0':</p>
  
  <pre><code>ValueError: year 0 is out of range
  </code></pre>
  
  <p>Can anyone help me out here. Many Thanks</p>