a><span class="identifier">date_type</span><span class="special">;</span>         

  <span class="comment">// <a class="link" href="null_dst_rules.html#id-1_3_14_15_3_23_2_1_4_5-bb">public static functions</a></span>
  <span class="keyword">static</span> <span class="identifier">time_is_dst_result</span> 
  <a class="link" href="null_dst_rules.html#id-1_3_14_15_3_23_2_1_4_5_1-bb"><span class="identifier">local_is_dst</span></a><span class="special">(</span><span class="keyword">const</span> <span class="id