tml">Duration</a></span>
          </span>
                  </dt>
        <dd>
          Returns a new <code>Duration</code> representing this <code>Duration</code> negated. <a href="dart-core/Duration/operator_unary_minus.html">[...]</a>
                  
</dd>
        <dt id="operator ~&#x2F;" class="callable">
          <span class="name"><a href="dart-core/Duration/operator_truncate_divide.html">operator ~/</a></span><span class="signature">(<wbr><span class="parameter" id="~/-param-quotient"><span cl