diff --git a/src/Monolog/Formatter/LogglyFormatter.php b/src/Monolog/Formatter/LogglyFormatter.php
new file mode 100644
index 00000000..db9e7c3f
--- /dev/null
+++ b/src/Monolog/Formatter/LogglyFormatter.php
@@ -0,0 +1,48 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+/**
+ * Encodes message information into JSON in a format compatible with Loggly.
+ *
+ * @author Adam Pancutt <adam@pancutt.com>
+ */
+class LogglyFormatter extends JsonFormatter
+{
+
+    /**
+     * Overrides the default batch mode to new lines for compatibility with the
+     * Loggly bulk API.
+     *
+     * @param integer $batch_mode
+     */
+    public function __construct($batch_mode = self::BATCH_MODE_NEWLINES)
+    {
+        parent::__construct($batch_mode);
+    }
+
+    /**
+     * Appends the 'timestamp' parameter for indexing by Loggly.
+     *
+     * @see https://www.loggly.com/docs/automated-parsing/#json
+     * @see \Monolog\Formatter\JsonFormatter::format()
+     */
+    public function format(array $record)
+    {
+        if (isset($record["datetime"]) && ($record["datetime"] instanceof \DateTime)) {
+            $record["timestamp"] = $record["datetime"]->format("c");
+            // @todo unset the 'datetime' parameter, retained for BC
+        }
+        return parent::format($record);
+    }
+
+}
diff --git a/src/Monolog/Handler/LogglyHandler.php b/src/Monolog/Handler/LogglyHandler.php
index ba2c7f11..9a3de6e6 100644
--- a/src/Monolog/Handler/LogglyHandler.php
+++ b/src/Monolog/Handler/LogglyHandler.php
@@ -12,7 +12,7 @@
 namespace Monolog\Handler;
 
 use Monolog\Logger;
-use Monolog\Formatter\JsonFormatter;
+use Monolog\Formatter\LogglyFormatter;
 
 /**
  * Sends errors to Loggly.
@@ -88,6 +88,6 @@ class LogglyHandler extends AbstractProcessingHandler
 
     protected function getDefaultFormatter()
     {
-        return new JsonFormatter(JsonFormatter::BATCH_MODE_NEWLINES);
+        return new LogglyFormatter();
     }
 }
diff --git a/tests/Monolog/Formatter/LogglyFormatterTest.php b/tests/Monolog/Formatter/LogglyFormatterTest.php
new file mode 100644
index 00000000..4ef0cb8a
--- /dev/null
+++ b/tests/Monolog/Formatter/LogglyFormatterTest.php
@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+use Monolog\Logger;
+use Monolog\TestCase;
+
+class LogglyFormatterTest extends TestCase
+{
+    /**
+     * @covers Monolog\Formatter\LogglyFormatter::__construct
+     */
+    public function testConstruct()
+    {
+        $formatter = new LogglyFormatter();
+        $this->assertEquals(LogglyFormatter::BATCH_MODE_NEWLINES, $formatter->getBatchMode());
+        $formatter = new LogglyFormatter(LogglyFormatter::BATCH_MODE_JSON);
+        $this->assertEquals(LogglyFormatter::BATCH_MODE_JSON, $formatter->getBatchMode());
+    }
+
+    /**
+     * @covers Monolog\Formatter\LogglyFormatter::format
+     */
+    public function testFormat()
+    {
+        $formatter = new LogglyFormatter();
+        $record = $this->getRecord();
+        $formatted_decoded = json_decode($formatter->format($record), true);
+        $this->assertArrayHasKey("timestamp", $formatted_decoded);
+        $this->assertEquals(new \DateTime($formatted_decoded["timestamp"]), $record["datetime"]);
+    }
+}