diff --git a/src/test/java/com/flowingcode/addons/ycalendar/YearI18NDemo.java b/src/test/java/com/flowingcode/addons/ycalendar/YearI18NDemo.java
new file mode 100644
index 0000000..efd1972
--- /dev/null
+++ b/src/test/java/com/flowingcode/addons/ycalendar/YearI18NDemo.java
@@ -0,0 +1,66 @@
+/*-
+ * #%L
+ * Year Month Calendar Add-on
+ * %%
+ * Copyright (C) 2021 - 2024 Flowing Code
+ * %%
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * #L%
+ */
+package com.flowingcode.addons.ycalendar;
+
+import com.flowingcode.vaadin.addons.demo.DemoSource;
+import com.vaadin.flow.component.datepicker.DatePicker.DatePickerI18n;
+import com.vaadin.flow.component.dependency.CssImport;
+import com.vaadin.flow.component.html.Div;
+import com.vaadin.flow.router.PageTitle;
+import com.vaadin.flow.router.Route;
+import java.text.DateFormatSymbols;
+import java.time.DayOfWeek;
+import java.time.temporal.WeekFields;
+import java.util.List;
+import java.util.Locale;
+
+@CssImport(value = "./styles/test_year-month-calendar.css", themeFor = "vaadin-month-calendar")
+@PageTitle("i18n")
+@DemoSource
+@Route(value = "year-month-calendar/year-i18n", layout = YearMonthCalendarDemoView.class)
+public class YearI18NDemo extends Div {
+
+  public YearI18NDemo() {
+
+    Locale locale = Locale.GERMAN;
+
+    DatePickerI18n i18n = new DatePickerI18n();
+    DateFormatSymbols dfs = DateFormatSymbols.getInstance(locale);
+    i18n.setMonthNames(List.of(dfs.getMonths()));
+    i18n.setWeekdays(List.of(dfs.getWeekdays()).stream().skip(1).toList());
+    i18n.setWeekdaysShort(List.of(dfs.getShortWeekdays()).stream().skip(1).toList());
+
+    DayOfWeek firstDayOfWeek = WeekFields.of(locale).getFirstDayOfWeek();
+    i18n.setFirstDayOfWeek(firstDayOfWeek.getValue() % 7);
+
+    YearCalendar calendar = new YearCalendar();
+    // #if vaadin eq 0
+    calendar.setClassNameGenerator(date -> {
+      if (date.getDayOfWeek() == DayOfWeek.SATURDAY || date.getDayOfWeek() == DayOfWeek.SUNDAY) {
+        return "weekend";
+      }
+      return null;
+    });
+    // #endif
+    calendar.setI18n(i18n);
+    add(calendar);
+  }
+
+}
diff --git a/src/test/java/com/flowingcode/addons/ycalendar/YearMonthCalendarDemoView.java b/src/test/java/com/flowingcode/addons/ycalendar/YearMonthCalendarDemoView.java
index d3ae87e..2e290c0 100644
--- a/src/test/java/com/flowingcode/addons/ycalendar/YearMonthCalendarDemoView.java
+++ b/src/test/java/com/flowingcode/addons/ycalendar/YearMonthCalendarDemoView.java
@@ -2,7 +2,7 @@
  * #%L
  * Year Month Calendar Add-on
  * %%
- * Copyright (C) 2021 - 2023 Flowing Code
+ * Copyright (C) 2021 - 2024 Flowing Code
  * %%
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -36,6 +36,7 @@ public class YearMonthCalendarDemoView extends TabbedDemo {
 
   public YearMonthCalendarDemoView() {
     addDemo(YearDemo.class);
+    addDemo(YearI18NDemo.class);
     addDemo(YearReadonlyDemo.class);
     addDemo(MonthDemo.class);
     addDemo(InlineDatePickerDemo.class);