diff --git a/judge/judgedaemon.main.php b/judge/judgedaemon.main.php
index 314a132f73..636a1aa747 100644
--- a/judge/judgedaemon.main.php
+++ b/judge/judgedaemon.main.php
@@ -1325,6 +1325,7 @@ function compile(
 function judge(array $judgeTask): bool
 {
     global $EXITCODES, $myhost, $options, $workdirpath, $exitsignalled, $gracefulexitsignalled, $endpointID;
+    $startTime = microtime(true);
 
     $compile_config = dj_json_decode($judgeTask['compile_config']);
     $run_config     = dj_json_decode($judgeTask['run_config']);
@@ -1509,6 +1510,8 @@ function judge(array $judgeTask): bool
 
         $new_judging_run = [
             'runresult' => urlencode($result),
+            'start_time' => urlencode((string)$startTime),
+            'end_time' => urlencode((string)microtime(true)),
             'runtime' => urlencode((string)$runtime),
             'output_run' => rest_encode_file($passdir . '/program.out', $output_storage_limit),
             'output_error' => rest_encode_file($passdir . '/program.err', $output_storage_limit),
diff --git a/webapp/migrations/Version20250831173317.php b/webapp/migrations/Version20250831173317.php
new file mode 100644
index 0000000000..9416554995
--- /dev/null
+++ b/webapp/migrations/Version20250831173317.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20250831173317 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // this up() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE judging_run ADD start_time NUMERIC(32, 9) UNSIGNED DEFAULT NULL COMMENT \'Time run judging started\'');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // this down() migration is auto-generated, please modify it to your needs
+        $this->addSql('ALTER TABLE judging_run DROP start_time');
+    }
+
+    public function isTransactional(): bool
+    {
+        return false;
+    }
+}
diff --git a/webapp/src/Controller/API/JudgehostController.php b/webapp/src/Controller/API/JudgehostController.php
index 5f9523ff4e..1045447fa1 100644
--- a/webapp/src/Controller/API/JudgehostController.php
+++ b/webapp/src/Controller/API/JudgehostController.php
@@ -644,6 +644,8 @@ public function addJudgingRunAction(
         }
 
         $runResult    = $request->request->get('runresult');
+        $startTime    = $request->request->get('start_time');
+        $endTime      = $request->request->get('end_time');
         $runTime      = $request->request->get('runtime');
         $outputRun    = $request->request->get('output_run');
         $outputDiff   = $request->request->get('output_diff');
@@ -659,7 +661,7 @@ public function addJudgingRunAction(
             throw new BadRequestHttpException("Who are you and why are you sending us any data?");
         }
 
-        $hasFinalResult = $this->addSingleJudgingRun($judgeTaskId, $hostname, $runResult, $runTime,
+        $hasFinalResult = $this->addSingleJudgingRun($judgeTaskId, $hostname, $runResult, $runTime, $startTime, $endTime,
             $outputSystem, $outputError, $outputDiff, $outputRun, $teamMessage, $metadata, $testcasedir, $compareMeta);
         $judgehost = $this->em->getRepository(Judgehost::class)->findOneBy(['hostname' => $hostname]);
         $judgehost->setPolltime(Utils::now());
@@ -924,6 +926,8 @@ private function addSingleJudgingRun(
         string  $hostname,
         string  $runResult,
         string  $runTime,
+        string  $startTime,
+        string  $endTime,
         string  $outputSystem,
         string  $outputError,
         string  $outputDiff,
@@ -945,6 +949,8 @@ private function addSingleJudgingRun(
         $this->em->wrapInTransaction(function () use (
             $judgeTaskId,
             $runTime,
+            $startTime,
+            $endTime,
             $runResult,
             $outputSystem,
             $outputError,
@@ -966,7 +972,8 @@ private function addSingleJudgingRun(
             $judgingRun
                 ->setRunresult($runResult)
                 ->setRuntime((float)$runTime)
-                ->setEndtime(Utils::now())
+                ->setStarttime($startTime)
+                ->setEndtime($endTime)
                 ->setTestcasedir($testcasedir);
             $judgingRunOutput
                 ->setOutputRun(base64_decode($outputRun))
diff --git a/webapp/src/Entity/JudgingRun.php b/webapp/src/Entity/JudgingRun.php
index 88fddf5436..dc1966a575 100644
--- a/webapp/src/Entity/JudgingRun.php
+++ b/webapp/src/Entity/JudgingRun.php
@@ -60,6 +60,16 @@ class JudgingRun extends BaseApiEntity
     #[Serializer\Exclude]
     private string|float|null $endtime = null;
 
+    #[ORM\Column(
+        type: 'decimal',
+        precision: 32,
+        scale: 9,
+        nullable: true,
+        options: ['comment' => 'Time run judging started', 'unsigned' => true]
+    )]
+    #[Serializer\Exclude]
+    private string|float|null $startTime = null;
+
     #[ORM\ManyToOne(inversedBy: 'runs')]
     #[ORM\JoinColumn(name: 'judgingid', referencedColumnName: 'judgingid', onDelete: 'CASCADE')]
     #[Serializer\Exclude]
@@ -157,6 +167,17 @@ public function setEndtime(string|float $endtime): JudgingRun
         return $this;
     }
 
+    public function setStarttime(string|float $startTime): JudgingRun
+    {
+        $this->startTime = $startTime;
+        return $this;
+    }
+
+    public function getStarttime(): string|float|null
+    {
+        return $this->startTime;
+    }
+
     public function getEndtime(): string|float|null
     {
         return $this->endtime;