(</span><span class="identifier">gregorian</span><span class="special">::</span><span class="identifier">date</span> d<span class="special">)</span><span class="special">;</span></pre>Construct a time at start of the given day (midnight) </li>
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<pre class="literallayout"><a name="id-1_3_12_15_5_11_1_1_1_10-bb"></a><span class="identifier">ptime</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">time_rep_type</span> <span class="special">&amp;