millisecondsPerHour</a></li>
      <li><a href="dart-core/Duration/millisecondsPerMinute-constant.html">millisecondsPerMinute</a></li>
      <li><a href="dart-core/Duration/millisecondsPerSecond-constant.html">millisecondsPerSecond</a></li>
      <li><a href="dart-core/Duration/minutesPerDay-constant.html">minutesPerDay</a></li>
      <li><a href="dart-core/Duration/minutesPerHour-constant.html">minutesPerHour</a></li>
      <li><a href="dart-core/Duration/secondsPerDay-constant.html">secondsPerDay</a></li>