Bootstrap based Date picker formatter for tablesorter (https://github.com/Mottie/tablesorter) using https://github.com/tarruda/bootstrap-datetimepicker

gistfile1.js

var bootstrapDatepicker = function($cell) {		
	var $minDateField = $('<div class="input-prepend minDateFilterField"><span class="add-on"><i data-time-icon="icon-chevron-right" data-date-icon="icon-chevron-right"></i></span><input class="forceHide" type="text"></div>').appendTo($cell);
	$minDateField.datetimepicker({
		pickDate: true,
		pickTime: false,
		format : "dd-MM-yyyy"
	});
	var minDatePicker = $minDateField.find('input');
			
	var $input = $('<input type="text" class="dateFilterField"/>').appendTo($cell);
	
	var $maxDateField = $('<div class="input-append maxDateFilterField"><input class="forceHide" type="text"><span class="add-on"><i data-time-icon="icon-chevron-left" data-date-icon="icon-chevron-left"></i></span></div>').appendTo($cell);
	$maxDateField.datetimepicker({
		pickDate: true,
		pickTime: false,
		format : "dd-MM-yyyy"
	});
	var maxDatePicker = $maxDateField.find('input');
			
	$minDateField.on('changeDate', function(){
		if(maxDatePicker.val() !== '') {
			$input.val(minDatePicker.val() + ' - ' + maxDatePicker.val());
		} else {
			$input.val('>= ' + minDatePicker.val());
		}
		$input.trigger('search');
	});
	
	$maxDateField.on('changeDate', function(){
		if(minDatePicker.val() !== '') {
			$input.val(minDatePicker.val() + ' - ' + maxDatePicker.val());
		} else {
			$input.val('<= ' + maxDatePicker.val());
		}
		$input.trigger('search');
	});
	
	$input.change(function(){
		if($input.val() === '') {
			minDatePicker.val('');
			maxDatePicker.val('');
		}
		return false;
	});
	
	return $input;
};

This demo shows how to use the filter with dangrossman/bootstrap-daterangepicker plugin.