diff --git a/src/app/daily/DailyPageClient.tsx b/src/app/daily/DailyPageClient.tsx
index f9ebf84..41a214c 100644
--- a/src/app/daily/DailyPageClient.tsx
+++ b/src/app/daily/DailyPageClient.tsx
@@ -103,12 +103,17 @@ export function DailyPageClient({
     await refreshDailyDates();
   };
 
-  const handleUpdateCheckbox = async (checkboxId: string, text: string, type: DailyCheckboxType, taskId?: string) => {
+  const handleUpdateCheckbox = async (checkboxId: string, text: string, type: DailyCheckboxType, taskId?: string, date?: Date) => {
     await updateCheckbox(checkboxId, { 
       text, 
       type, 
-      taskId // Permet la liaison tâche pour tous les types
+      taskId, // Permet la liaison tâche pour tous les types
+      date // Permet la modification de la date/heure
     });
+    // Refresh dates après modification pour mettre à jour le calendrier si la date a changé
+    if (date) {
+      await refreshDailyDates();
+    }
   };
 
   const handleReorderCheckboxes = async (date: Date, checkboxIds: string[]) => {
diff --git a/src/components/daily/DailyCheckboxItem.tsx b/src/components/daily/DailyCheckboxItem.tsx
index c1cd6ec..884959b 100644
--- a/src/components/daily/DailyCheckboxItem.tsx
+++ b/src/components/daily/DailyCheckboxItem.tsx
@@ -9,7 +9,7 @@ import { EditCheckboxModal } from './EditCheckboxModal';
 interface DailyCheckboxItemProps {
   checkbox: DailyCheckbox;
   onToggle: (checkboxId: string) => Promise<void>;
-  onUpdate: (checkboxId: string, text: string, type: DailyCheckboxType, taskId?: string) => Promise<void>;
+  onUpdate: (checkboxId: string, text: string, type: DailyCheckboxType, taskId?: string, date?: Date) => Promise<void>;
   onDelete: (checkboxId: string) => Promise<void>;
   saving?: boolean;
 }
@@ -93,8 +93,8 @@ export function DailyCheckboxItem({
     setEditingCheckbox(checkbox);
   };
 
-  const handleSaveAdvancedEdit = async (text: string, type: DailyCheckboxType, taskId?: string) => {
-    await onUpdate(checkbox.id, text, type, taskId);
+  const handleSaveAdvancedEdit = async (text: string, type: DailyCheckboxType, taskId?: string, date?: Date) => {
+    await onUpdate(checkbox.id, text, type, taskId, date);
     setEditingCheckbox(null);
   };
 
diff --git a/src/components/daily/DailySection.tsx b/src/components/daily/DailySection.tsx
index 15d5e48..a00920b 100644
--- a/src/components/daily/DailySection.tsx
+++ b/src/components/daily/DailySection.tsx
@@ -17,7 +17,7 @@ interface DailySectionProps {
   checkboxes: DailyCheckbox[];
   onAddCheckbox: (text: string, type: DailyCheckboxType) => Promise<void>;
   onToggleCheckbox: (checkboxId: string) => Promise<void>;
-  onUpdateCheckbox: (checkboxId: string, text: string, type: DailyCheckboxType, taskId?: string) => Promise<void>;
+  onUpdateCheckbox: (checkboxId: string, text: string, type: DailyCheckboxType, taskId?: string, date?: Date) => Promise<void>;
   onDeleteCheckbox: (checkboxId: string) => Promise<void>;
   onReorderCheckboxes: (date: Date, checkboxIds: string[]) => Promise<void>;
   onToggleAll?: () => Promise<void>;
diff --git a/src/components/daily/EditCheckboxModal.tsx b/src/components/daily/EditCheckboxModal.tsx
index 072687c..c6ea3ab 100644
--- a/src/components/daily/EditCheckboxModal.tsx
+++ b/src/components/daily/EditCheckboxModal.tsx
@@ -10,12 +10,13 @@ import { Card } from '@/components/ui/Card';
 import { SearchInput } from '@/components/ui/SearchInput';
 import { StatusBadge } from '@/components/ui/StatusBadge';
 import { tasksClient } from '@/clients/tasks-client';
+import { formatDateForDateTimeInput, parseDateTimeInput } from '@/lib/date-utils';
 
 interface EditCheckboxModalProps {
   checkbox: DailyCheckbox;
   isOpen: boolean;
   onClose: () => void;
-  onSave: (text: string, type: DailyCheckboxType, taskId?: string) => Promise<void>;
+  onSave: (text: string, type: DailyCheckboxType, taskId?: string, date?: Date) => Promise<void>;
   saving?: boolean;
 }
 
@@ -29,6 +30,7 @@ export function EditCheckboxModal({
   const [text, setText] = useState(checkbox.text);
   const [type, setType] = useState<DailyCheckboxType>(checkbox.type);
   const [taskId, setTaskId] = useState<string | undefined>(checkbox.taskId);
+  const [date, setDate] = useState<Date>(checkbox.date);
   const [selectedTask, setSelectedTask] = useState<Task | undefined>(undefined);
   const [allTasks, setAllTasks] = useState<Task[]>([]);
   const [tasksLoading, setTasksLoading] = useState(false);
@@ -83,7 +85,7 @@ export function EditCheckboxModal({
     if (!text.trim()) return;
     
     try {
-      await onSave(text.trim(), type, taskId);
+      await onSave(text.trim(), type, taskId, date);
       onClose();
     } catch (error) {
       console.error('Erreur lors de la sauvegarde:', error);
@@ -101,6 +103,7 @@ export function EditCheckboxModal({
     setText(checkbox.text);
     setType(checkbox.type);
     setTaskId(checkbox.taskId);
+    setDate(checkbox.date);
   };
 
   const handleClose = () => {
@@ -161,6 +164,15 @@ export function EditCheckboxModal({
           </div>
         </div>
 
+        {/* Date/Heure */}
+        <Input
+          label="Date/Heure"
+          type="datetime-local"
+          value={formatDateForDateTimeInput(date)}
+          onChange={(e) => setDate(parseDateTimeInput(e.target.value))}
+          disabled={saving}
+        />
+
         {/* Liaison tâche (pour tous les types) */}
         <div>
             <label className="block text-sm font-medium text-[var(--foreground)] mb-2">