diff --git a/.github/workflows/delete_branch_on_close_pr.yml b/.github/workflows/delete_branch_on_close_pr.yml
index 2469472d8..9c42668a4 100644
--- a/.github/workflows/delete_branch_on_close_pr.yml
+++ b/.github/workflows/delete_branch_on_close_pr.yml
@@ -2,7 +2,7 @@ name: Delete branch on close pr
 on: 
   pull_request:
     types: [closed]
-    branches: [main, develop/be, develop/fe]
+    branches: [develop/be]
   
 jobs:
   delete-branch:
diff --git a/.github/workflows/pr_checker.yml b/.github/workflows/pr_checker.yml
index 4964eee7f..0e23adf28 100644
--- a/.github/workflows/pr_checker.yml
+++ b/.github/workflows/pr_checker.yml
@@ -25,6 +25,11 @@ jobs:
         java-version: '11'
         distribution: 'adopt'
         
+    - name: Setup timezone
+      uses: zcong1993/setup-timezone@master
+      with:
+        timezone: Asia/Seoul
+        
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
       working-directory: ./backend
diff --git a/.github/workflows/push_builder.yml b/.github/workflows/push_builder.yml
index 87a799d58..7d25fe050 100644
--- a/.github/workflows/push_builder.yml
+++ b/.github/workflows/push_builder.yml
@@ -25,6 +25,11 @@ jobs:
         java-version: '11'
         distribution: 'adopt'
         
+    - name: Setup timezone
+      uses: zcong1993/setup-timezone@master
+      with:
+        timezone: Asia/Seoul
+        
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
       working-directory: ./backend