src/webui/app/shared/timestamp.html

<time datetime="{{value | isoDate}}" ng-click="toggle()" ng-show="longDate">
  {{value | isoDate}}</time>
<time datetime="{{value | isoDate}}" ng-click="toggle()" ng-hide="longDate">
  {{value | relativeDate:pollTime}}</time>
<span ng-transclude></span>