diff --git a/server/log.php b/server/log.php
index f1a53fe..7a0d216 100644
--- a/server/log.php
+++ b/server/log.php
@@ -107,7 +107,7 @@ foreach (['level1', 'level2', 'level3', 'level4'] as $name) {
 }
 
 $record = [
-	'timestamp' => date('c'),
+	'timestamp' => date('Y-m-d H:i:s'),
 	'level1' => (int) $levels['level1'],
 	'level2' => (int) $levels['level2'],
 	'level3' => (int) $levels['level3'],