HTML:
<input class="jquery-time-pick" type="text" autocomplete="off">
JS:
$('.jquery-time-pick').timepicker({ step:15, timeFormat: 'HH:mm:ss', });
Резултат:
Защо? Къде бъркам?
Опитай:
$('.jquery-time-pick').timepicker({ interval:15, timeFormat: 'HH:mm:ss', });