diff --git a/factory/template/sr_head.txt b/factory/template/sr_head.txt
index 991f7cb..fc72cf0 100644
--- a/factory/template/sr_head.txt
+++ b/factory/template/sr_head.txt
@@ -1,6 +1,6 @@
 # Best Shadowrocket Rules (https://github.com/Johnshall/Shadowrocket-ADBlock-Rules-Forever)
 # by Moshel and Johnshall
-# build time: {{build_time}}
+# build time: UTC {{build_time}}
 
 [General]
 bypass-system = true