diff --git a/src/components/Calendar/CalendarGrid.tsx b/src/components/Calendar/CalendarGrid.tsx
index a3f12b7..f57e31a 100644
--- a/src/components/Calendar/CalendarGrid.tsx
+++ b/src/components/Calendar/CalendarGrid.tsx
@@ -2,9 +2,19 @@ import React from 'react';
 import { View, Text, TouchableOpacity, StyleSheet } from 'react-native';
 import { Ionicons } from '@expo/vector-icons';
 import dayjs from 'dayjs';
+import { useTranslation } from 'react-i18next';
 import CalendarDay from './CalendarDay';
 import { Task } from '../../services/taskService';
 
+const MONTH_KEYS = [
+  'january', 'february', 'march', 'april', 'may', 'june',
+  'july', 'august', 'september', 'october', 'november', 'december'
+];
+
+const WEEKDAY_KEYS = [
+  'sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday'
+];
+
 export interface CalendarGridProps {
   selectedDate: string;
   tasks: Task[];
@@ -26,6 +36,7 @@ const CalendarGrid: React.FC<CalendarGridProps> = ({
   onPreviousMonth,
   onNextMonth
 }) => {
+  const { t } = useTranslation();
   // Gruppo gli impegni per data
   const groupTasksByDate = () => {
     const groupedTasks: Record<string, Task[]> = {};
@@ -130,7 +141,7 @@ const CalendarGrid: React.FC<CalendarGridProps> = ({
         </TouchableOpacity>
 
         <Text style={styles.calendarMonthTitle}>
-          {dayjs(selectedDate).format('MMMM YYYY')}
+          {t(`calendar.months.${MONTH_KEYS[dayjs(selectedDate).month()]}`)} {dayjs(selectedDate).year()}
         </Text>
 
         <TouchableOpacity onPress={onNextMonth} style={{ padding: 6 }}>
@@ -140,9 +151,9 @@ const CalendarGrid: React.FC<CalendarGridProps> = ({
       
       {/* Giorni della settimana */}
       <View style={styles.weekdaysRow}>
-        {['Dom', 'Lun', 'Mar', 'Mer', 'Gio', 'Ven', 'Sab'].map((day, index) => (
-          <Text key={index} style={styles.weekdayText}>
-            {day}
+        {WEEKDAY_KEYS.map((dayKey) => (
+          <Text key={dayKey} style={styles.weekdayText}>
+            {t(`calendar.days.${dayKey}`)}
           </Text>
         ))}
       </View>
diff --git a/src/components/Calendar/CalendarView.tsx b/src/components/Calendar/CalendarView.tsx
index a0a2a75..e7fd6c7 100644
--- a/src/components/Calendar/CalendarView.tsx
+++ b/src/components/Calendar/CalendarView.tsx
@@ -15,6 +15,11 @@ import AddTaskButton from '../Task/AddTaskButton';
 import { addTaskToList } from '../TaskList/types';
 import { LoadingState, EmptyState, StatusChip, AppText } from '../UI/foundation';
 
+const MONTH_KEYS = [
+  'january', 'february', 'march', 'april', 'may', 'june',
+  'july', 'august', 'september', 'october', 'november', 'december'
+];
+
 const CalendarView: React.FC = () => {
   const [selectedDate, setSelectedDate] = useState<string>(dayjs().format('YYYY-MM-DD'));
   const [tasks, setTasks] = useState<TaskType[]>([]);
@@ -292,7 +297,7 @@ const CalendarView: React.FC = () => {
       fetchTasks();
     } catch (error) {
       console.error("Errore nel completamento del task:", error);
-      Alert.alert("Errore", "Impossibile completare il task. Riprova.");
+      Alert.alert(t('calendar.errors.title'), t('calendar.errors.completeFailed'));
     }
   };
 
@@ -309,7 +314,7 @@ const CalendarView: React.FC = () => {
       fetchTasks();
     } catch (error) {
       console.error("Errore nell'annullamento del completamento del task:", error);
-      Alert.alert("Errore", "Impossibile riaprire il task. Riprova.");
+      Alert.alert(t('calendar.errors.title'), t('calendar.errors.reopenFailed'));
     }
   };
 
@@ -326,7 +331,7 @@ const CalendarView: React.FC = () => {
       fetchTasks();
     } catch (error) {
       console.error("Errore nella modifica del task:", error);
-      Alert.alert("Errore", "Impossibile modificare il task. Riprova.");
+      Alert.alert(t('calendar.errors.title'), t('calendar.errors.editFailed'));
     }
   };
 
@@ -362,8 +367,7 @@ const CalendarView: React.FC = () => {
     categoryNameParam?: string
   ) => {
     const priorityString = priority === 1 ? "Bassa" : priority === 2 ? "Media" : "Alta";
-    // Costruisci nuovo task con data di inizio dal calendario
-    const category = categoryNameParam || "Calendario";
+    const category = categoryNameParam || t('calendar.defaultCategory');
     const newTask = {
       id: Date.now(),
       title: title.trim(),
@@ -389,8 +393,8 @@ const CalendarView: React.FC = () => {
       console.error("Errore aggiunta task nel calendario:", error);
       addTaskToList(newTask, category);
       Alert.alert(
-        "Attenzione",
-        "Task aggiunto localmente ma errore nel salvataggio sul server."
+        t('calendar.errors.warningTitle'),
+        t('calendar.errors.localSaveWarning')
       );
       setShowAddTask(false);
     }
@@ -412,14 +416,14 @@ const CalendarView: React.FC = () => {
         <View style={styles.selectedDateHeader}>
           <View style={styles.titleContainer}>
             <AppText variant="subtitle" weight="300">
-              Impegni del {dayjs(selectedDate).format('DD MMMM YYYY')}
+              {t('calendar.commitmentsOf')} {dayjs(selectedDate).format('DD')} {t(`calendar.months.${MONTH_KEYS[dayjs(selectedDate).month()]}`)} {dayjs(selectedDate).year()}
             </AppText>
           </View>
           <AddTaskButton onPress={handleAddTask} screenWidth={screenWidth} isInline={true} />
         </View>
 
         {/* Componente di caricamento */}
-        <LoadingState variant="dots" label="Caricamento impegni..." />
+        <LoadingState variant="dots" label={t('calendar.loadingEvents')} />
         
         {/* Componente AddTask */}
         <AddTask 
@@ -427,7 +431,7 @@ const CalendarView: React.FC = () => {
           onClose={handleCloseAddTask}
           onSave={handleSaveTask}
           allowCategorySelection={true}
-          categoryName="Calendario"
+          categoryName={t('calendar.defaultCategory')}
           initialDate={selectedDate}
         />
       </View>
@@ -449,13 +453,13 @@ const CalendarView: React.FC = () => {
       <View style={styles.selectedDateHeader}>
         <View style={styles.titleContainer}>
           <AppText variant="subtitle" weight="300">
-            Impegni del {dayjs(selectedDate).format('DD MMMM YYYY')}
+            {t('calendar.commitmentsOf')} {dayjs(selectedDate).format('DD')} {t(`calendar.months.${MONTH_KEYS[dayjs(selectedDate).month()]}`)} {dayjs(selectedDate).year()}
           </AppText>
           {syncStatus && (syncStatus.isSyncing || syncStatus.pendingChanges > 0) && (
             <View style={styles.syncIndicator}>
               {syncStatus.isSyncing ? (
                 <StatusChip
-                  label="Sync..."
+                  label={t('calendar.syncing')}
                   tone="neutral"
                   leftIcon={<ActivityIndicator size="small" color="#666666" />}
                 />
@@ -487,7 +491,7 @@ const CalendarView: React.FC = () => {
         ) : (
           <EmptyState
             icon={<Ionicons name="calendar-outline" size={48} color="#cccccc" />}
-            title="Nessun impegno per questa data"
+            title={t('calendar.noEventsForDate')}
             style={styles.noTasksContainer}
           />
         )}
@@ -499,7 +503,7 @@ const CalendarView: React.FC = () => {
         onClose={handleCloseAddTask}
         onSave={handleSaveTask}
         allowCategorySelection={true}
-        categoryName="Calendario"
+        categoryName={t('calendar.defaultCategory')}
         initialDate={selectedDate}
       />
     </View>
diff --git a/src/components/Calendar20/AgendaView.tsx b/src/components/Calendar20/AgendaView.tsx
index d04a7c7..b323d52 100644
--- a/src/components/Calendar20/AgendaView.tsx
+++ b/src/components/Calendar20/AgendaView.tsx
@@ -106,7 +106,7 @@ const AgendaView: React.FC<AgendaViewProps> = ({
       if (mins < 60) return `${mins} min`;
       const h = Math.floor(mins / 60);
       const m = mins % 60;
-      if (m === 0) return h === 1 ? '1 ora' : `${h} ore`;
+      if (m === 0) return h === 1 ? t('calendar20.duration.hour') : t('calendar20.duration.hours', { count: h });
       return `${h}h ${m}min`;
     })();
 
@@ -186,7 +186,7 @@ const AgendaView: React.FC<AgendaViewProps> = ({
       ListFooterComponent={
         <TouchableOpacity style={styles.loadMoreButton} onPress={loadMore}>
           <Ionicons name="chevron-down" size={20} color="#000000" />
-          <Text style={styles.loadMoreText}>Load more</Text>
+          <Text style={styles.loadMoreText}>{t('calendar20.loadMore')}</Text>
         </TouchableOpacity>
       }
     />
diff --git a/src/components/Calendar20/Calendar20View.tsx b/src/components/Calendar20/Calendar20View.tsx
index 83a07fc..6645c65 100644
--- a/src/components/Calendar20/Calendar20View.tsx
+++ b/src/components/Calendar20/Calendar20View.tsx
@@ -22,6 +22,7 @@ import FABMenu from './FABMenu';
 import AddTask from '../Task/AddTask';
 import AsyncStorage from '@react-native-async-storage/async-storage';
 import { LoadingState } from '../UI/foundation';
+import { useTranslation } from 'react-i18next';
 
 dayjs.extend(isoWeek);
 
@@ -32,6 +33,7 @@ interface Calendar20ViewProps {
 }
 
 const Calendar20View: React.FC<Calendar20ViewProps> = ({ onClose }) => {
+  const { t } = useTranslation();
   const [viewType, setViewType] = useState<CalendarViewType>('month');
   const [currentDate, setCurrentDate] = useState(dayjs());
   const [rawTasks, setRawTasks] = useState<Task[]>([]);
@@ -273,7 +275,7 @@ const Calendar20View: React.FC<Calendar20ViewProps> = ({ onClose }) => {
   ) => {
     const { addTask } = await import('../../services/taskService');
     const priorityString = priority === 1 ? 'Bassa' : priority === 2 ? 'Media' : 'Alta';
-    const category = categoryNameParam || 'Calendario';
+    const category = categoryNameParam || t('calendar.defaultCategory');
     // Usa la data selezionata se disponibile, altrimenti usa la data corrente
     const taskDate = selectedDateForTask || currentDate;
     const newTask: Task = {
@@ -416,7 +418,7 @@ const Calendar20View: React.FC<Calendar20ViewProps> = ({ onClose }) => {
         }}
         onSave={handleSaveTask}
         allowCategorySelection={true}
-        categoryName="Calendario"
+        categoryName={t('calendar.defaultCategory')}
         initialDate={(selectedDateForTask || currentDate).format('YYYY-MM-DD')}
       />
     </View>