diff --git a/src/managers/GridManager.ts b/src/managers/GridManager.ts
index db01dad..693584e 100644
--- a/src/managers/GridManager.ts
+++ b/src/managers/GridManager.ts
@@ -94,8 +94,8 @@ export class GridManager {
       this.currentDate
     );
 
-    // Calculate period range
-    const periodRange = this.getPeriodRange();
+    // Get display dates for current view
+    const dates = this.getDisplayDates();
 
     // Get layout config based on current view
     const layoutConfig = this.getLayoutConfig();
@@ -104,8 +104,7 @@ export class GridManager {
     eventBus.emit(CoreEvents.GRID_RENDERED, {
       container: this.container,
       currentDate: this.currentDate,
-      startDate: periodRange.startDate,
-      endDate: periodRange.endDate,
+      dates: dates,
       layoutConfig: layoutConfig,
       columnCount: layoutConfig.columnCount
     });
@@ -131,37 +130,6 @@ export class GridManager {
     }
   }
 
-  /**
-   * Get period range for current view
-   */
-  private getPeriodRange(): { startDate: Date; endDate: Date } {
-    switch (this.currentView) {
-      case 'week':
-        const weekStart = this.getISOWeekStart(this.currentDate);
-        const weekEnd = this.getWeekEnd(this.currentDate);
-        return {
-          startDate: weekStart,
-          endDate: weekEnd
-        };
-      case 'month':
-        return {
-          startDate: this.getMonthStart(this.currentDate),
-          endDate: this.getMonthEnd(this.currentDate)
-        };
-      case 'day':
-        return {
-          startDate: this.currentDate,
-          endDate: this.currentDate
-        };
-      default:
-        const defaultWeekStart = this.getISOWeekStart(this.currentDate);
-        const defaultWeekEnd = this.getWeekEnd(this.currentDate);
-        return {
-          startDate: defaultWeekStart,
-          endDate: defaultWeekEnd
-        };
-    }
-  }
 
   /**
    * Get layout config for current view
diff --git a/src/renderers/EventRendererManager.ts b/src/renderers/EventRendererManager.ts
index a688728..092b6e6 100644
--- a/src/renderers/EventRendererManager.ts
+++ b/src/renderers/EventRendererManager.ts
@@ -91,12 +91,16 @@ export class EventRenderingService {
      * Handle GRID_RENDERED event - render events in the current grid
      */
     private handleGridRendered(event: CustomEvent): void {
-        const { container, startDate, endDate } = event.detail;
+        const { container, dates } = event.detail;
 
-        if (!container || !startDate || !endDate) {
+        if (!container || !dates || dates.length === 0) {
             return;
         }
 
+        // Calculate startDate and endDate from dates array
+        const startDate = dates[0];
+        const endDate = dates[dates.length - 1];
+
         this.renderEvents({
             container,
             startDate,
diff --git a/src/types/ManagerTypes.ts b/src/types/ManagerTypes.ts
index ca2fe64..af8c5a5 100644
--- a/src/types/ManagerTypes.ts
+++ b/src/types/ManagerTypes.ts
@@ -40,7 +40,6 @@ export interface IEventRenderingService extends IManager {
 
 export interface IGridManager extends IManager {
   render(): Promise<void>;
-  getDisplayDates(): Date[];
 }
 
 export interface IScrollManager extends IManager {