diff --git a/.github/workflows/ci-main.yml b/.github/workflows/ci-main.yml
index 27fd425c5..94adc4a12 100644
--- a/.github/workflows/ci-main.yml
+++ b/.github/workflows/ci-main.yml
@@ -190,6 +190,7 @@ jobs:
 
     steps:
     # TODO: szenius/set-timezone update to node16
+    # sudo ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
     - name: Setup Timezone
       uses: szenius/set-timezone@v1.1
       with:
diff --git a/os/gtime/gtime_z_unit_test.go b/os/gtime/gtime_z_unit_test.go
index 6b14650fe..eae6eac07 100644
--- a/os/gtime/gtime_z_unit_test.go
+++ b/os/gtime/gtime_z_unit_test.go
@@ -111,21 +111,14 @@ func Test_StrToTime(t *testing.T) {
 			"02.jan.2006 15:04:05",
 			"02.jan.2006:15:04:05",
 		}
-		// Save the previous time zone
-		local := *time.Local
-		defer func() {
-			*time.Local = local
-		}()
-		time.Local = time.FixedZone("Asia/Shanghai", 8*3600)
 
-		for i, item := range testDateTimes {
+		for _, item := range testDateTimes {
 			timeTemp, err := gtime.StrToTime(item)
 			t.AssertNil(err)
-			t.Log(i)
 			t.Assert(timeTemp.Time.Local().Format("2006-01-02 15:04:05"), "2006-01-02 15:04:05")
 		}
 
-		// Correct date string,.
+		// Correct date string.
 		var testDates = []string{
 			"2006.01.02",
 			"2006.01.02 00:00",