diff --git a/core-java-modules/core-java-8-datetime/src/test/java/com/ossez/datetime/DateTimeZoneUnitTest.java b/core-java-modules/core-java-8-datetime/src/test/java/com/ossez/datetime/DateTimeZoneUnitTest.java
new file mode 100644
index 0000000000..d90f4f4592
--- /dev/null
+++ b/core-java-modules/core-java-8-datetime/src/test/java/com/ossez/datetime/DateTimeZoneUnitTest.java
@@ -0,0 +1,33 @@
+package com.ossez.datetime;
+
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.time.LocalDateTime;
+import java.time.Month;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.format.FormatStyle;
+import java.util.Locale;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class DateTimeZoneUnitTest {
+    private static final Logger logger = LoggerFactory.getLogger(DateTimeZoneUnitTest.class);
+
+    @Test
+    public void zoneId_out() {
+        ZoneId zoneId = ZoneId.of("Asia/Shanghai");
+        logger.debug("zoneId: {}", zoneId);
+    }
+
+
+    @Test
+    public void zoneOffset_out() {
+        LocalDateTime now = LocalDateTime.now();
+        ZoneId zone = ZoneId.of("Asia/Shanghai");
+        ZoneOffset zoneOffSet = zone.getRules().getOffset(now);
+        logger.debug("zoneOffSet: {}", zoneOffSet);
+    }
+}
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