<div class="form-group">
                    <label for="completion-date" class="col-sm-2 control-label">Teljesités</label>
                    <div class="col-sm-4">
                        <div class="input-group date" id="completion-date-inputgroup">
                            <input type="text" class="form-control" id="completion-date" name="completion_date" />
                            <span class="input-group-addon">
                                <span class="glyphicon glyphicon-calendar"></span>
                            </span>
                        </div>
                        <script type="application/javascript">
                            $(function () {
                                $('#completion-date-inputgroup').datetimepicker({
                                    locale: 'de'
                                });
                            });
                        </script>
                    </div>
                </div>