angula , time interval

 var app= angular.module('scopeExample', [])

app.controller('MyController', function($scope) {
  $scope.person = { name: "Ari Lerner" };


  var updateClock = function() {
    $scope.clock = new Date();
  };


  var timer = setInterval(function() {
    $scope.$apply(updateClock);
  }, 1000);


  updateClock();
});

===============

   <h5>{{ clock }}</h5>