It is angular Exam-Timer, it will decrease every second.  you can easily use.  include 'ngExamTimer' module in your module,   ex: angular.module('route',['ngExamTimer']);  You can mention your Time total time  Foramt: 2:50:50   we should specify in total-time, on-end of this time you can send call back.  ex: <div exam-timer total-time="00:00:2" on-end="startProcess(0,0,10)"></div>