html">bool</a></span>
          </span>
                  </dt>
        <dd>
          Returns <code>true</code> if the value of this Duration
is greater than or equal to the value of <code>other</code>.
                  
</dd>
        <dt id="operator unary-" class="callable">
          <span class="name"><a href="dart-core/Duration/operator_unary_minus.html">operator unary-</a></span><span class="signature">(<wbr>)
            <span class="returntype parameter">&#8594; <a href="dart-core/Duration-class.h