an><span class="n">astype</span><span class="p">(</span><span class="nb">int</span><span class="p">)</span>

    <span class="n">dt</span> <span class="o">=</span> <span class="nb">abs</span><span class="p">(</span><span class="n">t</span><span class="p">[</span><span class="n">idx1</span><span class="p">]</span> <span class="o">-</span> <span class="n">t</span><span class="p">[</span><span class="n">idx2</span><span class="p">])</span> <span class="o">/</span> <span class="p">(</span><span class="mi">60</s