diff --git a/.github/workflows/run_test.yml b/.github/workflows/run_test.yml
new file mode 100644
index 0000000..eb8cf62
--- /dev/null
+++ b/.github/workflows/run_test.yml
@@ -0,0 +1,27 @@
+name: Run All UnitTest
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      max-parallel: 4
+      matrix:
+        python-version: [3.7, 3.8]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt -r requirements_test.txt
+      - name: Test with pytest
+        run: |
+          export PYTHONPATH=./
+          pytest --verbose --color=yes
\ No newline at end of file
diff --git a/pytchat/processors/default/renderer/base.py b/pytchat/processors/default/renderer/base.py
index d6826c9..3c99951 100644
--- a/pytchat/processors/default/renderer/base.py
+++ b/pytchat/processors/default/renderer/base.py
@@ -1,4 +1,4 @@
-from datetime import datetime
+from datetime import datetime, timedelta, timezone
 
 
 class Author:
@@ -90,7 +90,8 @@ class BaseRenderer:
         self.chat.author.badgeUrl = badge["liveChatAuthorBadgeRenderer"]["customThumbnail"]["thumbnails"][0]["url"]
 
     def get_datetime(self, timestamp):
-        dt = datetime.fromtimestamp(timestamp / 1000000)
+        jst = timezone(timedelta(hours=9))
+        dt = datetime.fromtimestamp(timestamp / 1000000, jst)
         return dt.strftime('%Y-%m-%d %H:%M:%S')
 
     def get_chatobj(self):