l#header.boost.date_time.local_timezone_defs_hpp" title="Header &lt;boost/date_time/local_timezone_defs.hpp&gt;">boost/date_time/local_timezone_defs.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> date_type<span class="special">&gt;</span> 
<span class="keyword">struct</span> <a class="link" href="us_dst_trait.html" title="Struct template us_dst_trait">us_dst_trait</a> <span class="special">{</span>
  <span class="comment">// ty