diff --git a/os/gtime/gtime_z_unit_basic_test.go b/os/gtime/gtime_z_unit_basic_test.go
index 941171a95..c1f1afef9 100644
--- a/os/gtime/gtime_z_unit_basic_test.go
+++ b/os/gtime/gtime_z_unit_basic_test.go
@@ -15,17 +15,14 @@ import (
 	"github.com/gogf/gf/test/gtest"
 )
 
-// DATA RACE!
-//time.Now()
-//    /home/travis/.gimme/versions/go1.11.13.linux.amd64/src/time/time.go:1060 +0xcf
-//time.sendTime()
-//    /home/travis/.gimme/versions/go1.11.13.linux.amd64/src/time/sleep.go:141 +0x44
-//func Test_SetTimeZone(t *testing.T) {
-//	gtest.C(t, func(t *gtest.T) {
-//		gtime.SetTimeZone("Asia/Shanghai")
-//		t.Assert(time.Local.String(), "Asia/Shanghai")
-//	})
-//}
+func init() {
+	gtime.SetTimeZone("Asia/Shanghai")
+}
+func Test_SetTimeZone(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		t.Assert(time.Local.String(), "Asia/Shanghai")
+	})
+}
 
 func Test_Nanosecond(t *testing.T) {
 	gtest.C(t, func(t *gtest.T) {