diff --git a/services/production/app/repositories/production_batch_repository.py b/services/production/app/repositories/production_batch_repository.py
index 4a968ede..995f9507 100644
--- a/services/production/app/repositories/production_batch_repository.py
+++ b/services/production/app/repositories/production_batch_repository.py
@@ -643,9 +643,11 @@ class ProductionBatchRepository(ProductionBaseRepository, BatchCountProvider):
             if "order_id" in filters:
                 query = query.where(ProductionBatch.order_id == filters["order_id"])
             if "start_date" in filters:
-                query = query.where(ProductionBatch.planned_start_time >= filters["start_date"])
+                # Filter batches that START on or after this date
+                query = query.where(func.date(ProductionBatch.planned_start_time) >= filters["start_date"])
             if "end_date" in filters:
-                query = query.where(ProductionBatch.planned_end_time <= filters["end_date"])
+                # Filter batches that START on or before this date
+                query = query.where(func.date(ProductionBatch.planned_start_time) <= filters["end_date"])
 
             # Apply pagination
             offset = (page - 1) * page_size
@@ -678,9 +680,11 @@ class ProductionBatchRepository(ProductionBaseRepository, BatchCountProvider):
             if "order_id" in filters:
                 query = query.where(ProductionBatch.order_id == filters["order_id"])
             if "start_date" in filters:
-                query = query.where(ProductionBatch.planned_start_time >= filters["start_date"])
+                # Filter batches that START on or after this date
+                query = query.where(func.date(ProductionBatch.planned_start_time) >= filters["start_date"])
             if "end_date" in filters:
-                query = query.where(ProductionBatch.planned_end_time <= filters["end_date"])
+                # Filter batches that START on or before this date
+                query = query.where(func.date(ProductionBatch.planned_start_time) <= filters["end_date"])
 
             result = await self.session.execute(query)
             count = result.scalar()