title: fill combobox in windows form application C# with time interval (hours: minutes)
body: <p>hello I have a combobox in my windows form application C#</p>
  
  <p>How can I fill it with time from a specific start time (for example 12:00) to a specific end time (for example 14:00) by adding 20 minutes, just like in the following picture:</p>
  
  <p><a href="https://i.stack.imgur.com/E7y4j.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/E7y4j.png" alt="fill combobox with time"></a></p>