title: How to get Time between 2 String values which are in String form
body: <p>I Have Shop Working Hour JSON</p>
  
  <pre><code>{
    "MinPerAppointment": "30",
    "OpeningTime": "10:30",
    "BreakStartTime": "12:00",
    "BreakEndTime": "13:00",
    "ClosingTime": "19:30"
   }
  </code></pre>
  
  <p>I want to get All Data of time Interval of 30(MinPerAppointment) <strong>OpeningTime</strong> to <strong>ClosingTime</strong> by <strong>Neglecting BreakStartTime and BreakEndTime</strong>. </p>
  
  <p>I want to get in Data in this Format</p>
  
  <p>10:30</p>
  
  <p>11:00</p>
  
  <p>11:30</p>
  
  <p>..Neglected Data Between BreakStartTime to BreakEndTime.. , which is 12 to 13:00</p>
  
  <p>13:00</p>
  
  <p>13:30</p>
  
  <p>.....</p>
  
  <p>.....</p>
  
  <p>19:00</p>