diff --git a/ppanel.go b/ppanel.go
index a2e8110..7fb787d 100644
--- a/ppanel.go
+++ b/ppanel.go
@@ -1,6 +1,20 @@
 package main
 
-import "github.com/perfect-panel/server/cmd"
+import (
+	"time"
+
+	"github.com/perfect-panel/server/cmd"
+)
+
+func init() {
+	// Ensure time.Local matches DSN loc=Asia/Shanghai.
+	// In scratch Docker images, Go defaults to UTC even with TZ set,
+	// causing time range queries to shift by 8 hours.
+	loc, err := time.LoadLocation("Asia/Shanghai")
+	if err == nil {
+		time.Local = loc
+	}
+}
 
 func main() {
 	cmd.Execute()