diff --git a/_debug_replacements.php b/_debug_replacements.php
index c7d4124..56fad84 100644
--- a/_debug_replacements.php
+++ b/_debug_replacements.php
@@ -57,7 +57,7 @@ return [
 
 	'vers_fw' => $vers,
 	'date' => date('Y-m-d'),
-	'time' => date('G:i'),
+	'time' => date('G:i')." ".TIMEZONE,
 	'vers_httpd' => '0.4',
 	'vers_sdk' => '010502',
 	'githubrepo' => 'https://github.com/espterm/espterm-firmware',
diff --git a/base.php b/base.php
index a049c68..c0458cf 100644
--- a/base.php
+++ b/base.php
@@ -14,6 +14,8 @@ if (!empty($argv[1])) {
 
 define('GIT_HASH', trim(shell_exec('git rev-parse --short HEAD')));
 
+define('TIMEZONE', trim(shell_exec('date +%Z'))); // for replacements
+
 $prod = defined('STDIN');
 define('DEBUG', !$prod);