_2_1_2_6_2-bb"></a><span class="identifier">is_dst_boundary_day</span><span class="special">(</span><span class="identifier">date_type</span> d<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">time_duration_type</span> <a name="id-1_3_14_15_3_23_2_1_2_6_3-bb"></a><span class="identifier">dst_offset</span><span class="special">(</span><span class="special">)</span><span class="s