special">;</span> 
                                          
<span class="comment">//check if a local time is in dst or not -- posible answers</span>
<span class="comment">//are yes, no, invalid time label, ambiguous</span>
<span class="identifier">ptime</span> <span class="identifier">t</span><span class="special">(</span><span class="special">...</span><span class="identifier">some</span> <span class="identifier">time</span><span class="special">...</span><span class="special">)</span><span class="specia