git subrepo commit (merge) mailcow/src/mailcow-dockerized

subrepo: subdir:   "mailcow/src/mailcow-dockerized"
  merged:   "f83239ed"
upstream: origin:   "https://github.com/mailcow/mailcow-dockerized.git"
  branch:   "master"
  commit:   "7627a7a9"
git-subrepo: version:  "0.4.6"
  origin:   "???"
  commit:   "???"
Change-Id: I88e430779f11ac9848e81a9e4eae549100ed1f94
diff --git a/mailcow/src/mailcow-dockerized/data/web/debug.php b/mailcow/src/mailcow-dockerized/data/web/debug.php
index 52052f6..9c33800 100644
--- a/mailcow/src/mailcow-dockerized/data/web/debug.php
+++ b/mailcow/src/mailcow-dockerized/data/web/debug.php
@@ -39,9 +39,13 @@
       $StartedAt['month'],
       $StartedAt['day'],
       $StartedAt['year']));
-    $user_tz = new DateTimeZone(getenv('TZ'));
-    $date->setTimezone($user_tz);
-    $started = $date->format('r');
+    try {
+      $user_tz = new DateTimeZone(getenv('TZ'));
+      $date->setTimezone($user_tz);
+      $started = $date->format('r');
+    } catch(Exception $e) {
+      $started = '?';
+    }
   }
   else {
     $started = '?';