diff --git a/demo/utils/simple_memory_manager.py b/demo/utils/simple_memory_manager.py
index f5526650..b0b2908e 100644
--- a/demo/utils/simple_memory_manager.py
+++ b/demo/utils/simple_memory_manager.py
@@ -244,7 +244,6 @@ async def search(
             query: Query text
             top_k: Number of results to return (default: 3)
             mode: Retrieval mode (default: "rrf")
-                - "rrf": RRF fusion (recommended)
                 - "keyword": Keyword retrieval (BM25)
                 - "vector": Vector retrieval
                 - "hybrid": Keyword + Vector + Rerank
diff --git a/docker-compose.yaml b/docker-compose.yaml
index 29407030..373f860b 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -14,7 +14,6 @@ services:
       - "27017:27017"
     volumes:
       - mongodb_data:/data/db
-      - ./docker/mongodb/init:/docker-entrypoint-initdb.d
     networks:
       - memsys-network
     healthcheck:
diff --git a/src/biz_layer/mem_db_operations.py b/src/biz_layer/mem_db_operations.py
index 66519a42..03800bfd 100644
--- a/src/biz_layer/mem_db_operations.py
+++ b/src/biz_layer/mem_db_operations.py
@@ -143,7 +143,7 @@ def _convert_timestamp_to_time(
             try:
                 dt = from_iso_format(timestamp)
                 return to_iso_format(dt)
-            except:
+            except Exception:
                 # If parsing fails, return string directly
                 return timestamp
         else:
diff --git a/src/infra_layer/adapters/out/search/repository/episodic_memory_milvus_repository.py b/src/infra_layer/adapters/out/search/repository/episodic_memory_milvus_repository.py
index 4aad056b..7b1e7131 100644
--- a/src/infra_layer/adapters/out/search/repository/episodic_memory_milvus_repository.py
+++ b/src/infra_layer/adapters/out/search/repository/episodic_memory_milvus_repository.py
@@ -124,7 +124,7 @@ async def create_and_save_episodic_memory(
                 metadata_json = metadata
                 try:
                     metadata_dict = json.loads(metadata)
-                except:
+                except Exception:
                     metadata_dict = {}
 
             # Prepare entity data
diff --git a/src/memory_layer/prompts/en/episode_mem_prompts.py b/src/memory_layer/prompts/en/episode_mem_prompts.py
index 3ff63378..364bf588 100644
--- a/src/memory_layer/prompts/en/episode_mem_prompts.py
+++ b/src/memory_layer/prompts/en/episode_mem_prompts.py
@@ -17,12 +17,12 @@
 Custom instructions:
 {custom_instructions}
 
-IMPORTANT TIME HANDLING:
-- Use the provided "Conversation start time" as the exact time when this conversation/episode began
-- When the conversation mentions relative times (e.g., "yesterday", "last week"), preserve both the original relative expression AND calculate the absolute date
-- Format time references as: "original relative time (absolute date)" - e.g., "last week (May 7, 2023)"
-- This dual format supports both absolute and relative time-based questions
-- All absolute time calculations should be based on the provided start time
+IMPORTANT TIME HANDLING (STRICT ISO 8601):
+- Always use ISO 8601 format with timezone: YYYY-MM-DDTHH:MM:SSZ or YYYY-MM-DDTHH:MM:SS+HH:MM
+- Example correct formats: 2026-01-23T02:19:25Z or 2026-01-23T10:07:00+08:00
+- NEVER use Chinese characters (年, 月, 日), weekdays, or partial times
+- Example incorrect: "2026年1月22日11:25:33" or "2026年1月23日 02:19:25 UTC"
+- Always convert relative times to absolute ISO 8601 format
 
 Please generate a structured episodic memory and return only a JSON object containing the following two fields:
 {{