diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index e893890f..dfbf1027 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -35,5 +35,7 @@ jobs:
         run: cd web && yarn check:type
       - name: Test
         run: yarn test
+        env:
+          TZ: Asia/Shanghai
       - name: Check Build
         run: cd web && yarn build
diff --git a/test/setup.js b/test/setup.js
index cd33b518..da0b85ac 100644
--- a/test/setup.js
+++ b/test/setup.js
@@ -1,8 +1,6 @@
 // mock
 jest.mock('tailchat-shared/i18n');
 
-process.env.TZ = 'Asia/Shanghai';
-
 const ignoreErroMessages = [
   /Warning.*not wrapped in act/,
   /PluginManifest validation/,