diff --git a/data-prepper-plugins/s3-source/src/main/java/org/opensearch/dataprepper/plugins/source/s3/S3InputFile.java b/data-prepper-plugins/s3-source/src/main/java/org/opensearch/dataprepper/plugins/source/s3/S3InputFile.java
index 5b80a3fec0..401a8869ea 100644
--- a/data-prepper-plugins/s3-source/src/main/java/org/opensearch/dataprepper/plugins/source/s3/S3InputFile.java
+++ b/data-prepper-plugins/s3-source/src/main/java/org/opensearch/dataprepper/plugins/source/s3/S3InputFile.java
@@ -8,6 +8,7 @@
 import software.amazon.awssdk.services.s3.model.HeadObjectResponse;
 
 import java.time.Duration;
+import java.time.Instant;
 
 public class S3InputFile implements InputFile {
 
@@ -46,6 +47,15 @@ public long getLength() {
         return getMetadata().contentLength();
     }
 
+    /**
+     * Return the last modified time of the file
+     *
+     * @return last modified time
+     */
+    public Instant getLastModified() {
+        return getMetadata().lastModified();
+    }
+
     /**
      * Create an input stream from the input file
      * @return an implementation of a SeekableInputStream into the S3 object.
diff --git a/data-prepper-plugins/s3-source/src/main/java/org/opensearch/dataprepper/plugins/source/s3/S3ObjectWorker.java b/data-prepper-plugins/s3-source/src/main/java/org/opensearch/dataprepper/plugins/source/s3/S3ObjectWorker.java
index 6750ada0f3..aca42fb8a8 100644
--- a/data-prepper-plugins/s3-source/src/main/java/org/opensearch/dataprepper/plugins/source/s3/S3ObjectWorker.java
+++ b/data-prepper-plugins/s3-source/src/main/java/org/opensearch/dataprepper/plugins/source/s3/S3ObjectWorker.java
@@ -20,6 +20,7 @@
 
 import java.io.IOException;
 import java.time.Duration;
+import java.time.Instant;
 import java.util.concurrent.Callable;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicLong;
@@ -43,6 +44,7 @@ class S3ObjectWorker implements S3ObjectHandler {
     private final int numberOfRecordsToAccumulate;
     private final BiConsumer<Event, S3ObjectReference> eventConsumer;
     private final S3ObjectPluginMetrics s3ObjectPluginMetrics;
+    private Instant lastModified;
 
     public S3ObjectWorker(final S3ObjectRequest s3ObjectRequest) {
         this.buffer = s3ObjectRequest.getBuffer();
@@ -53,6 +55,7 @@ public S3ObjectWorker(final S3ObjectRequest s3ObjectRequest) {
         this.numberOfRecordsToAccumulate = s3ObjectRequest.getNumberOfRecordsToAccumulate();
         this.eventConsumer = s3ObjectRequest.getEventConsumer();
         this.s3Client = s3ObjectRequest.getS3Client();
+        this.lastModified = Instant.now();
         this.s3ObjectPluginMetrics = s3ObjectRequest.getS3ObjectPluginMetrics();
     }
 
@@ -95,16 +98,22 @@ private void doParseObject(final AcknowledgementSet acknowledgementSet,
         final AtomicInteger saveStateCounter = new AtomicInteger();
         try {
             s3ObjectSize = inputFile.getLength();
+            final Instant lastModifiedTime = inputFile.getLastModified();
+            final Instant now = Instant.now();
+            final Instant originationTime = (lastModifiedTime == null || lastModifiedTime.isAfter(now)) ? now : lastModifiedTime;
 
             codec.parse(inputFile, fileCompressionOption.getDecompressionEngine(), record -> {
                 try {
-                    eventConsumer.accept(record.getData(), s3ObjectReference);
+                    Event event = record.getData();
+                    eventConsumer.accept(event, s3ObjectReference);
+                    event.getMetadata().setExternalOriginationTime(originationTime);
+                    event.getEventHandle().setExternalOriginationTime(originationTime);
                     // Always add record to acknowledgementSet before adding to
                     // buffer because another thread may take and process
                     // buffer contents before the event record is added
                     // to acknowledgement set
                     if (acknowledgementSet != null) {
-                        acknowledgementSet.add(record.getData());
+                        acknowledgementSet.add(event);
                     }
                     bufferAccumulator.add(record);
 
diff --git a/data-prepper-plugins/s3-source/src/test/java/org/opensearch/dataprepper/plugins/source/s3/S3ObjectWorkerTest.java b/data-prepper-plugins/s3-source/src/test/java/org/opensearch/dataprepper/plugins/source/s3/S3ObjectWorkerTest.java
index eadc9a7b8b..2f1d0161fd 100644
--- a/data-prepper-plugins/s3-source/src/test/java/org/opensearch/dataprepper/plugins/source/s3/S3ObjectWorkerTest.java
+++ b/data-prepper-plugins/s3-source/src/test/java/org/opensearch/dataprepper/plugins/source/s3/S3ObjectWorkerTest.java
@@ -22,6 +22,8 @@
 import org.opensearch.dataprepper.model.codec.DecompressionEngine;
 import org.opensearch.dataprepper.model.codec.InputCodec;
 import org.opensearch.dataprepper.model.event.Event;
+import org.opensearch.dataprepper.model.event.EventMetadata;
+import org.opensearch.dataprepper.model.event.EventHandle;
 import org.opensearch.dataprepper.model.io.InputFile;
 import org.opensearch.dataprepper.model.record.Record;
 import org.opensearch.dataprepper.model.source.coordinator.SourceCoordinator;
@@ -196,6 +198,12 @@ void parseS3Object_calls_getObject_with_correct_GetObjectRequest_with_Acknowledg
         numEventsAdded = 0;
         doAnswer(a -> {
             Record record = mock(Record.class);
+            final Event event = mock(Event.class);
+            final EventMetadata metadata = mock(EventMetadata.class);
+            final EventHandle eventHandle = mock(EventHandle.class);
+            when(record.getData()).thenReturn(event);
+            when(event.getMetadata()).thenReturn(metadata);
+            when(event.getEventHandle()).thenReturn(eventHandle);
             Consumer c = (Consumer)a.getArgument(2);
             c.accept(record);
             return null;
@@ -272,7 +280,11 @@ void parseS3Object_calls_Codec_parse_with_Consumer_that_adds_to_BufferAccumulato
 
         final Record<Event> record = mock(Record.class);
         final Event event = mock(Event.class);
+        final EventMetadata metadata = mock(EventMetadata.class);
+        final EventHandle eventHandle = mock(EventHandle.class);
         when(record.getData()).thenReturn(event);
+        when(event.getMetadata()).thenReturn(metadata);
+        when(event.getEventHandle()).thenReturn(eventHandle);
 
         consumerUnderTest.accept(record);
 
@@ -305,7 +317,11 @@ void parseS3Object_calls_Codec_parse_with_Consumer_that_adds_to_BufferAccumulato
 
         final Record<Event> record = mock(Record.class);
         final Event event = mock(Event.class);
+        final EventMetadata metadata = mock(EventMetadata.class);
+        final EventHandle eventHandle = mock(EventHandle.class);
         when(record.getData()).thenReturn(event);
+        when(event.getMetadata()).thenReturn(metadata);
+        when(event.getEventHandle()).thenReturn(eventHandle);
         consumerUnderTest.accept(record);
 
         final InOrder inOrder = inOrder(eventConsumer, bufferAccumulator, sourceCoordinator);