"number">120</span><span class="special">,</span> 
         <span class="keyword">short</span> dst_length_minutes <span class="special">=</span> <span class="number">60</span><span class="special">&gt;</span> 
<span class="keyword">class</span> <a class="link" href="us_dst_rules.html" title="Class template us_dst_rules">us_dst_rules</a> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// types</span>
  <span class="keyword">typedef</spa