diff --git a/runtimes/v1/azure_functions_runtime_v1/handle_event.py b/runtimes/v1/azure_functions_runtime_v1/handle_event.py
index 4e877e3f..da3b39e2 100644
--- a/runtimes/v1/azure_functions_runtime_v1/handle_event.py
+++ b/runtimes/v1/azure_functions_runtime_v1/handle_event.py
@@ -5,6 +5,7 @@
 import logging
 import os
 import sys
+import time
 import typing
 
 from .functions import FunctionInfo, Registry
@@ -275,6 +276,9 @@ async def function_environment_reload_request(request):
         for var in env_vars:
             os.environ[var] = env_vars[var]
 
+        # Refresh timezone information after environment reload
+        time.tzset()
+
         if is_envvar_true(PYTHON_ENABLE_DEBUG_LOGGING):
             root_logger = logging.getLogger()
             root_logger.setLevel(logging.DEBUG)
diff --git a/runtimes/v2/azure_functions_runtime/handle_event.py b/runtimes/v2/azure_functions_runtime/handle_event.py
index 3d6b8acf..0ed133f9 100644
--- a/runtimes/v2/azure_functions_runtime/handle_event.py
+++ b/runtimes/v2/azure_functions_runtime/handle_event.py
@@ -4,6 +4,7 @@
 import logging
 import os
 import sys
+import time
 
 from typing import List, MutableMapping, Optional
 
@@ -306,7 +307,6 @@ async def function_environment_reload_request(request):
                  "Version %s", VERSION)
     global _host, protos
     try:
-
         func_env_reload_request = \
             request.request.function_environment_reload_request
         directory = func_env_reload_request.function_app_directory
@@ -323,7 +323,8 @@ async def function_environment_reload_request(request):
         for var in env_vars:
             os.environ[var] = env_vars[var]
 
-        # TODO: Apply PYTHON_THREADPOOL_THREAD_COUNT
+        # Refresh timezone information after environment reload
+        time.tzset()
 
         if is_envvar_true(PYTHON_ENABLE_DEBUG_LOGGING):
             root_logger = logging.getLogger()
diff --git a/workers/azure_functions_worker/dispatcher.py b/workers/azure_functions_worker/dispatcher.py
index 5907edd9..fa8be111 100644
--- a/workers/azure_functions_worker/dispatcher.py
+++ b/workers/azure_functions_worker/dispatcher.py
@@ -13,6 +13,7 @@
 import queue
 import sys
 import threading
+import time
 from asyncio import BaseEventLoop
 from datetime import datetime
 from logging import LogRecord
@@ -775,6 +776,9 @@ async def _handle__function_environment_reload_request(self, request):
             for var in env_vars:
                 os.environ[var] = env_vars[var]
 
+            # Refresh timezone information after environment reload
+            time.tzset()
+
             # Apply PYTHON_THREADPOOL_THREAD_COUNT
             self._stop_sync_call_tp()
             self._sync_call_tp = (