How to prevent jQuery bootstrap ClockPicker to get minutes that are not divisible by 5

Question

I am using jQuery bootstrap ClockPicker and need to get only times that their minutes are divisible by 5. For example if user selects 13:08, the ClockPicker should select 13:05.

Is there a way to override clockpicker to round down selected times minutes?

Answer 1

I didn't found a way to do this with the API. So I wrote one using afterDone callback.

I parse the input's value and make the change to get the new minutes value.

var clockpicker = $('.clockpicker').clockpicker({
  afterDone: function() {
    clockpicker.val(round());
  }
}).find('input');

function round() {
  var time = clockpicker.val(),
      arr = time.split(':'),
      hour = arr[0],
      min = arr[1],
      newMin = (Math.floor(parseInt(min) / 5)) * 5;

  return hour + ':' + (newMin > 9 ? '' : '0') + newMin;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
<link href="https://weareoutman.github.io/clockpicker/dist/bootstrap-clockpicker.min.css" rel="stylesheet" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script src="https://weareoutman.github.io/clockpicker/dist/bootstrap-clockpicker.min.js"></script>

<div class="input-group clockpicker col-xs-6">
  <input type="text" class="form-control" value="09:30">
  <span class="input-group-addon">
    <span class="glyphicon glyphicon-time"></span>
  </span>
</div>

http://jsbin.com/lopufu/edit?html,js