diff --git a/.env.docker.example b/.env.docker.example
index 58d3404..537fb3c 100644
--- a/.env.docker.example
+++ b/.env.docker.example
@@ -6,6 +6,7 @@ SERVER_ADDRESS=0.0.0.0
 SERVER_PORT=9503
 
 MEMORY_LIMIT=256M
+TIMEZONE=UTC
 
 # List of allowed clients. Separate with comma.
 # Leave blanc, to allow requests from all IP (dangerous!)
diff --git a/.env.example b/.env.example
index cba06b3..2f3c343 100644
--- a/.env.example
+++ b/.env.example
@@ -6,6 +6,7 @@ SERVER_ADDRESS=127.0.0.1
 SERVER_PORT=9503
 
 MEMORY_LIMIT=256M
+TIMEZONE=UTC
 
 # List of allowed clients. Separate with comma.
 # Leave blanc, to allow requests from all IP (dangerous!)
diff --git a/bootstrap.php b/bootstrap.php
index de960cb..15eeeea 100644
--- a/bootstrap.php
+++ b/bootstrap.php
@@ -49,11 +49,14 @@
     }
 }
 
-$memoryLimit = getenv('MEMORY_LIMIT');
-if ($memoryLimit !== false) {
+if ($memoryLimit = getenv('MEMORY_LIMIT')) {
     ini_set('memory_limit', $memoryLimit);
 }
 
+if ($timezone = getenv('TIMEZONE')) {
+    date_default_timezone_set($timezone);
+}
+
 if (!function_exists('debug')) {
     function debug(string $message, array $context) {
         Logger::getInstance()->debug($message, $context);