diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
index 4964dd3..73ffc56 100644
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -1,5 +1,6 @@
 name: C/C++ CI
 
+#on: [push, pull_request]
 on:
   push:
   pull_request:
@@ -26,15 +27,18 @@ jobs:
 
     - name: Get current date
       id: date
-      run: echo "::set-output name=date::$(date +'%Y-%m-%d_%H-%M-%S')"
+      run: echo "::set-output name=date::$(env TZ=Asia/Taipei date +'%Y-%m-%d_%H-%M-%S')"
     - name: Get respository name
       id: repository_name
       run: echo "::set-output name=repository_name::$(echo '${{ github.repository }}' | awk -F '/' '{print $2}')"
+    - name: Get current branch
+      id: branch
+      run: echo "::set-output name=branch::$(echo '${{ github.ref }}' | awk -F '/' '{print $NF}')"
 
     - name: Upload build output
       uses: actions/upload-artifact@v2
       with:
-        name: ${{ steps.repository_name.outputs.repository_name }}
+        name: ${{ steps.repository_name.outputs.repository_name }}-${{ steps.branch.outputs.branch }}
         path: a.out
 
     - name: Create Release
@@ -43,8 +47,8 @@ jobs:
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
-        tag_name: ${{ steps.date.outputs.date }}
-        release_name: ${{ steps.date.outputs.date }}
+        tag_name: ${{ steps.branch.outputs.branch }}-${{ steps.date.outputs.date }}
+        release_name: ${{ steps.branch.outputs.branch }}-${{ steps.date.outputs.date }}
         draft: false
         prerelease: false
 
@@ -56,7 +60,7 @@ jobs:
       with:
         upload_url: ${{ steps.create_release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps
         asset_path: ${{ github.workspace }}/a.out
-        asset_name: ${{ steps.repository_name.outputs.repository_name }}
+        asset_name: ${{ steps.repository_name.outputs.repository_name }}-${{ steps.branch.outputs.branch }}
         asset_content_type: application/octet-stream
 
     - name: Send mail
@@ -74,6 +78,7 @@ jobs:
         # email body as text
         html_body: <h1> Build ${{ job.status }} </h1></br>
                    <table>
+                   <tr><td> branch </td><td><font color="#3366BB">${{ steps.branch.outputs.branch }}</font></td></tr>
                    <tr><td> build commit message </td><td><font color="#3366BB">${{ github.event.head_commit.message }}</font></td></tr>
                    <tr><td> build commit </td><td>https://github.com/${{ github.repository }}/commit/${{ github.sha }}</td></tr>
                    <tr><td> build url </td><td>https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}</td></tr>