diff --git a/src/renderers/EventRenderer.ts b/src/renderers/EventRenderer.ts
index 89ee2a0..0fe7978 100644
--- a/src/renderers/EventRenderer.ts
+++ b/src/renderers/EventRenderer.ts
@@ -153,7 +153,7 @@ export class DateEventRenderer implements IEventRenderer {
     let eventsLayer = payload.targetColumn.element.querySelector('swp-events-layer');
 
     // Add "clone-" prefix to match clone ID pattern
-    timedClone.dataset.eventId = payload.calendarEvent.id;
+    timedClone.dataset.eventId = `clone-${payload.calendarEvent.id}`;
 
     // Remove old all-day clone and replace with new timed clone
     payload.draggedClone.remove();
diff --git a/src/renderers/EventRendererManager.ts b/src/renderers/EventRendererManager.ts
index deebf33..037820d 100644
--- a/src/renderers/EventRendererManager.ts
+++ b/src/renderers/EventRendererManager.ts
@@ -183,13 +183,15 @@ export class EventRenderingService {
 
                     await this.eventManager.updateEvent(eventId, {
                         start: newStart,
-                        end: newEnd
+                        end: newEnd,
+                        allDay: false
                     });
 
                     console.log('📝 EventRendererManager: Updated event in EventManager', {
                         eventId,
                         newStart,
-                        newEnd
+                        newEnd,
+                        allDay: false
                     });
                 }