diff --git a/src/Stackdriver/SpanConverter.php b/src/Stackdriver/SpanConverter.php
index ead80bb..4bd8beb 100644
--- a/src/Stackdriver/SpanConverter.php
+++ b/src/Stackdriver/SpanConverter.php
@@ -120,7 +120,8 @@ private static function convertTimeEvents(array $events)
     private static function convertAnnotation(OCAnnotation $annotation)
     {
         return new Annotation($annotation->description(), [
-            'attributes' => $annotation->attributes()
+            'attributes' => $annotation->attributes(),
+            'time' => $annotation->time()
         ]);
     }
 
@@ -129,7 +130,8 @@ private static function convertMessageEvent(OCMessageEvent $messageEvent)
         return new MessageEvent($messageEvent->id(), [
             'type' => self::MESSAGE_TYPE_MAP[$messageEvent->type()],
             'uncompressedSizeBytes' => $messageEvent->uncompressedSize(),
-            'compressedSizeBytes' => $messageEvent->compressedSize()
+            'compressedSizeBytes' => $messageEvent->compressedSize(),
+            'time' => $messageEvent->time()
         ]);
     }
 
diff --git a/tests/unit/Stackdriver/SpanConverterTest.php b/tests/unit/Stackdriver/SpanConverterTest.php
index caaa8f0..7f10965 100644
--- a/tests/unit/Stackdriver/SpanConverterTest.php
+++ b/tests/unit/Stackdriver/SpanConverterTest.php
@@ -157,15 +157,18 @@ public function testLinks()
 
     public function testTimeEvents()
     {
+        $time = 1490737450.484299;
         $span = new OCSpan([
             'traceId' => 'aaa',
             'timeEvents' => [
                 new OCAnnotation('some-description', [
-                    'attributes' => ['foo' => 'bar']
+                    'attributes' => ['foo' => 'bar'],
+                    'time' => $time
                 ]),
                 new OCMessageEvent(OCMessageEvent::TYPE_SENT, 'message-id', [
                     'uncompressedSize' => 234,
-                    'compressedSize' => 123
+                    'compressedSize' => 123,
+                    'time' => $time
                 ])
             ],
             'startTime' => new \DateTime(),
@@ -179,6 +182,7 @@ public function testTimeEvents()
         $event1 = $timeEvents[0];
         $this->assertEquals('some-description', $event1['annotation']['description']['value']);
         $this->assertRegExp(self::TIMESTAMP_FORMAT_REGEXP, $event1['time']);
+        $this->assertEquals('2017-03-28T21:44:10.484299000Z', $event1['time']);
 
         $event2 = $timeEvents[1];
         $this->assertEquals('SENT', $event2['messageEvent']['type']);
@@ -186,6 +190,7 @@ public function testTimeEvents()
         $this->assertEquals(234, $event2['messageEvent']['uncompressedSizeBytes']);
         $this->assertEquals(123, $event2['messageEvent']['compressedSizeBytes']);
         $this->assertRegExp(self::TIMESTAMP_FORMAT_REGEXP, $event2['time']);
+        $this->assertEquals('2017-03-28T21:44:10.484299000Z', $event2['time']);
     }
 
     public function testStatus()