title: Trouble parsing dataset to date format
body: <p>I am currently converting 3 different datasets to date format before I attempt to merge them. The first two I had no problem using <code>lubridate</code> to parse the date column</p>
  <pre><code>COVID19$Date &lt;- lubridate::ymd(COVID19$Date)
  TESTS$Date &lt;- lubridate::ymd(TESTS$Date) 
  </code></pre>
  <p>However with the third data set when I use the same <code>lubridate</code> function I receive the following warning</p>
  <pre><code>RECOVERED_tidy &lt;- lubridate::ymd(RECOVERED_tidy$Date)
  Warning message:
  All formats failed to parse. No formats found. 
  </code></pre>
  <p>This dataset was previously tidied so all the date columns were merged into one column using:</p>
  <pre><code>RECOVERED_tidy &lt;- pivot_longer(RECOVERED, starts_with(&quot;X&quot;), names_to = &quot;date&quot;, values_to = &quot;recovered&quot;)
  </code></pre>
  <p>Is this why it won't use the same function?</p>
  <p>Thanks for any help!</p>
  <p>EDIT:</p>
  <p>Sample of Recovered data</p>
  <pre><code> Country     Date        Recovered
    &lt;fct&gt;       &lt;chr&gt;           &lt;int&gt;
  1 Afghanistan X2020.01.22         0
  2 Afghanistan X2020.01.23         0
  3 Afghanistan X2020.01.24         0
  4 Afghanistan X2020.01.25         0
  5 Afghanistan X2020.01.26         0
  6 Afghanistan X2020.01.27         0
  </code></pre>