</span><span class="special">&gt;</span>  
                                          <span class="identifier">us_dst_calc</span><span class="special">;</span>
<span class="comment">//calculate the 2002 transition day of USA April 7 2002</span>
<span class="identifier">date</span> <span class="identifier">dst_start</span> <span class="special">=</span> <span class="identifier">us_dst_calc</span><span class="special">::</span><span class="identifier">local_dst_start_day</span><span class="special">(</span><sp