diff --git a/java-dates/pom.xml b/java-dates/pom.xml
index 13e2a077e1..2618fad1d4 100644
--- a/java-dates/pom.xml
+++ b/java-dates/pom.xml
@@ -80,7 +80,7 @@
         <joda-time.version>2.10</joda-time.version>
         <!-- testing -->
         <assertj.version>3.6.1</assertj.version>
-		<maven.compiler.source>9</maven.compiler.source>
-        <maven.compiler.target>9</maven.compiler.target>
+		<maven.compiler.source>1.9</maven.compiler.source>
+        <maven.compiler.target>1.9</maven.compiler.target>
     </properties>
 </project>
diff --git a/java-dates/src/test/java/com/baeldung/zoneddatetime/ZonedDateTimeUnitTest.java b/java-dates/src/test/java/com/baeldung/zoneddatetime/ZonedDateTimeUnitTest.java
new file mode 100644
index 0000000000..355fef35c6
--- /dev/null
+++ b/java-dates/src/test/java/com/baeldung/zoneddatetime/ZonedDateTimeUnitTest.java
@@ -0,0 +1,43 @@
+package com.baeldung.zoneddatetime;
+
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.logging.Logger;
+
+import org.junit.Test;
+
+public class ZonedDateTimeUnitTest {
+
+    private static final Logger log = Logger.getLogger(ZonedDateTimeUnitTest.class.getName());
+
+    @Test
+    public void testZonedDateTimeToString() {
+
+        ZonedDateTime zonedDateTimeNow = ZonedDateTime.now(ZoneId.of("UTC"));
+        ZonedDateTime zonedDateTimeOf = ZonedDateTime.of(2018, 01, 01, 0, 0, 0, 0, ZoneId.of("UTC"));
+
+        LocalDateTime localDateTime = LocalDateTime.now();
+        ZonedDateTime zonedDateTime = ZonedDateTime.of(localDateTime, ZoneId.of("UTC"));
+
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MM/dd/yyyy - hh:mm:ss Z");
+        String formattedString = zonedDateTime.format(formatter);
+
+        DateTimeFormatter formatter2 = DateTimeFormatter.ofPattern("MM/dd/yyyy - hh:mm:ss z");
+        String formattedString2 = zonedDateTime.format(formatter2);
+
+        log.info(formattedString);
+        log.info(formattedString2);
+
+    }
+
+    @Test
+    public void testZonedDateTimeFromString() {
+
+        ZonedDateTime zonedDateTime = ZonedDateTime.parse("2011-12-03T10:15:30+01:00", DateTimeFormatter.ISO_ZONED_DATE_TIME);
+
+        log.info(zonedDateTime.format(DateTimeFormatter.ISO_ZONED_DATE_TIME));
+    }
+
+}