How can I set default time instead of current time for this datetimepicker http://tarruda.github.io/bootstrap-datetimepicker/ ?
You can set the default time via JavaScript :
$('mySelector').timepicker({defaultTime: '10:45 PM'});
Or directly via the value attribute of your timepicker :
<div class="bootstrap-timepicker">
<input id="timepicker" type="text" value="10:45 AM"/>
</div>
$('.myClass').timepicker({defaultTime: 'value'});
EDIT : was for the default timepicker of boostrap, my bad.
For your specific timepicker, it seems possible to set the datetime like this :
var picker = $('#datetimepicker').data('datetimepicker');
picker.setDate(myDate);