</span><span class="op">)</span><span class="op">]</span>, <span class="st">"%m/%d/%Y %H:%M"</span><span class="op">)</span>, <span class="st">"%d-%m-%Y\n%H:%M"</span><span class="op">)</span>
<span class="va">weeknum</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/numeric.html" class="external-link">as.numeric</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/format.html" class="external-link">format</a></span><span class="op">(</span>