diff --git a/src/Provider/Record_Provider.php b/src/Provider/Record_Provider.php
index 411619e..268487a 100644
--- a/src/Provider/Record_Provider.php
+++ b/src/Provider/Record_Provider.php
@@ -5,6 +5,7 @@ namespace Rarst\Laps\Provider;
 use Pimple\Container;
 use Pimple\ServiceProviderInterface;
 use Rarst\Laps\Plugin;
+use Rarst\Laps\Record\Core_Load_Collector;
 use Rarst\Laps\Record\Hook_Record_Collector;
 use Rarst\Laps\Record\Http_Record_Collector;
 use Rarst\Laps\Record\Record_Collector_Interface;
@@ -27,6 +28,7 @@ class Record_Provider implements ServiceProviderInterface, Bootable_Provider_Int
 
 		$pimple['collectors'] = function ( Plugin $laps ) {
 			return [
+				'core' => new Core_Load_Collector(),
 				'hook' => new Hook_Record_Collector( $laps['stopwatch'], $laps['hook.events'] ),
 				'http' => new Http_Record_Collector( $laps['stopwatch'] ),
 				'sql'  => new Sql_Record_Collector(),
diff --git a/src/Record/Core_Load_Collector.php b/src/Record/Core_Load_Collector.php
new file mode 100644
index 0000000..12bab35
--- /dev/null
+++ b/src/Record/Core_Load_Collector.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Rarst\Laps\Record;
+
+/**
+ * Covers pre–plugin load time from available data.
+ */
+class Core_Load_Collector implements Record_Collector_Interface {
+
+	/** @var float $timeload */
+	protected $timeload;
+
+	/**
+	 * Store core load end, plugin load start mark.
+	 */
+	public function __construct() {
+		$this->timeload = microtime( true );
+	}
+
+	/**
+	 * @return Record_Interface[]
+	 */
+	public function get_records() {
+
+		global $timestart;
+
+		$request_time = $_SERVER['REQUEST_TIME_FLOAT'];
+
+		return [
+			new Record( 'PHP Load', $request_time, $timestart - $request_time, '', 'php' ),
+			// TODO This includes network plugins on multisite, need conditional label if Laps is network–activated.
+			new Record( 'Core and MU Plugins Load', $timestart, $this->timeload - $timestart, '', 'core' ),
+		];
+	}
+}
diff --git a/src/Record/Timeline_Iterator.php b/src/Record/Timeline_Iterator.php
index 1a2fee4..143ddd9 100644
--- a/src/Record/Timeline_Iterator.php
+++ b/src/Record/Timeline_Iterator.php
@@ -24,9 +24,7 @@ class Timeline_Iterator implements \Iterator {
 	 */
 	public function __construct( Recursive_Record_Iterator $iterator ) {
 
-		global $timestart;
-
-		$this->origin   = $timestart;
+		$this->origin   = $_SERVER['REQUEST_TIME_FLOAT'];
 		$this->iterator = $iterator;
 	}
 
diff --git a/tests/Record/CoreTest.php b/tests/Record/CoreTest.php
new file mode 100644
index 0000000..b99f141
--- /dev/null
+++ b/tests/Record/CoreTest.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Rarst\Laps\Tests\Record;
+
+use Rarst\Laps\Record\Core_Load_Collector;
+use Rarst\Laps\Record\Record_Interface;
+use Rarst\Laps\Tests\LapsTestCase;
+
+class CoreTest extends LapsTestCase {
+
+	public function testCollector() {
+
+		$collector = new Core_Load_Collector();
+
+		$records = $collector->get_records();
+
+		$this->assertInternalType( 'array', $records );
+		$this->assertCount( 2, $records );
+		$this->assertInstanceOf( Record_Interface::class, $records[0] );
+	}
+}