harT</span> <span class="special">&gt;</span>                 <a name="boost.date_time.ostream_time_d_idp40672768.ostream_type"></a><span class="identifier">ostream_type</span><span class="special">;</span>           
  <span class="keyword">typedef</span> <span class="identifier">time_duration_type</span><span class="special">::</span><span class="identifier">fractional_seconds_type</span> <a name="boost.date_time.ostream_time_d_idp40672768.fractional_seconds_type"></a><span class="identifier">fractional_s