Merge pull request #82 from beneite/feature

beneite · web-flow · commit 9f52200d1b41 · 2026-01-23T18:05:35.000+05:30
adding Instant for date and time
diff --git a/pom.xml b/pom.xml
@@ -150,6 +150,13 @@
       <version>1.0.2</version>
     </dependency>
 
+    <dependency>
+      <groupId>ch.qos.logback</groupId>
+      <artifactId>logback-classic</artifactId>
+      <version>1.4.14</version>
+      <scope>test</scope>
+    </dependency>
+
 
   </dependencies>
     <build>
diff --git a/src/main/java/dateAndTime/UsingInstant.java b/src/main/java/dateAndTime/UsingInstant.java
@@ -0,0 +1,47 @@
+package dateAndTime;
+
+import lombok.extern.slf4j.Slf4j;
+import org.testng.annotations.Test;
+
+import java.time.Instant;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+
+@Slf4j
+public class UsingInstant {
+
+    @Test
+    public void testTimeInstant(){
+        Instant instant = Instant.now(); // UTC time
+        System.out.println("Simple instant:"+instant);
+    }
+
+    @Test
+    public void testInstantUsingTimeZone(){
+        Instant instant = Instant.now(); // UTC time
+        System.out.println("Simple instant:"+instant);
+
+        ZoneId utc = ZoneId.of("UTC");
+        ZoneId indiaZoneId = ZoneId.of("Asia/Kolkata");
+        ZoneId nyZoneId = ZoneId.of("America/New_York");
+
+        ZonedDateTime indiaTime = instant.atZone(indiaZoneId);
+        ZonedDateTime nyTime = instant.atZone(nyZoneId);
+
+        System.out.println("indiaTime:"+indiaTime);
+        System.out.println("nyTime:"+nyTime);
+    }
+
+    @Test
+    public void testInstantUsingTimeZoneAndDateFormatter() {
+        // best practise is to always follow this flow: Instant →ZonedDateTime →DateTimeFormatter
+        Instant instant = Instant.now();
+        System.out.println("Simple instant:"+instant);
+
+        var standardDateTimeFormat = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss z");
+        ZoneId indiaZone = ZoneId.of("Asia/Kolkata");
+        String standardTimeFormatInIndiaTimeZone = standardDateTimeFormat.withZone(indiaZone).format(instant);
+        System.out.println("standardTimeFormatInIndiaTimeZone:"+ standardTimeFormatInIndiaTimeZone);
+    }
+}
