diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 9ab8d3e5..6db53614 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -39,6 +39,8 @@ jobs:
       - name: Run unit and component tests
         run: npm test
         working-directory: frontend
+        env:
+          TZ: Europe/Berlin
 
       - name: Build frontend
         run: npm run build