You can pass plugin options using data-options attribute. Please make sure to use valid json code.
Plugin DocsJSON Formatter<div class="form-group"> <input type="text" class="date-time-picker form-control form-control-lg" data-options='{ "theme":"dark", "inline":true, "format":"d.m.Y H:i" }'/></div>
For Date time range (Please check plugin docs for more information)
jQuery(function(){ jQuery('#date_timepicker_start').datetimepicker({ format:'Y/m/d', onShow:function( ct ){ this.setOptions({ maxDate:jQuery('#date_timepicker_end').val()?jQuery('#date_timepicker_end').val():false }) }, timepicker:false }); jQuery('#date_timepicker_end').datetimepicker({ format:'Y/m/d', onShow:function( ct ){ this.setOptions({ minDate:jQuery('#date_timepicker_start').val()?jQuery('#date_timepicker_start').val():false }) }, timepicker:false });});