$('#timezone_example_3').datepicker({
	timezone: 'MT',
	timezoneList: [ 
			{ value: 'ET', label: 'Eastern'}, 
			{ value: 'CT', label: 'Central' }, 
			{ value: 'MT', label: 'Mountain' }, 
			{ value: 'PT', label: 'Pacific' } 
		]
});