From cdde1d54e4b96756f18c9bb2305e8a32216e1106 Mon Sep 17 00:00:00 2001
From: Alexandr Priezzhev <priezz@users.noreply.github.com>
Date: Tue, 19 Dec 2023 02:04:22 +0100
Subject: [PATCH] Fix when TZ environment var is not set

---
 freezegun/api.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/freezegun/api.py b/freezegun/api.py
index a5dd1bf6..b333b84a 100644
--- a/freezegun/api.py
+++ b/freezegun/api.py
@@ -41,7 +41,7 @@
 real_datetime = datetime.datetime
 real_date_objects = [real_time, real_localtime, real_gmtime, real_monotonic, real_perf_counter, real_strftime, real_date, real_datetime]
 real_tzlocal = dateutil.tz.tzlocal
-real_tz_env = os.environ["TZ"]
+real_tz_env = os.environ["TZ"] if "TZ" in os.environ else ''
 
 if _TIME_NS_PRESENT:
     real_time_ns = time.time_ns