--- a/application/p/logic/BillingRecord.php
+++ b/application/p/logic/BillingRecord.php
@@ -208,7 +208,15 @@
             ->where('store_id', $this->getStoreId())
             ->order(['id' => 'asc'])
             ->select();
-        return $this->rowsToArray($rows);
+        $rows = $this->rowsToArray($rows);
+        $isDm = ltrim((string)\think\Config::get('database.type'), '\\') === \app\cores\database\Dm::class;
+        foreach ($rows as &$row) {
+            if (array_key_exists('create_time', $row)) {
+                $row['create_time'] = self::normalizeTimePrecision($row['create_time'], $isDm);
+            }
+        }
+        unset($row);
+        return $rows;
     }
 
     public function adjustAmount($billId, array $meals, $reason, $operator)
@@ -1133,12 +1141,25 @@
 
     private function formatNullableTime($time)
     {
+        $time = self::normalizeTimePrecision($time, ltrim((string)\think\Config::get('database.type'), '\\') === \app\cores\database\Dm::class);
         if (empty($time) || $time === self::EMPTY_TIME || $time === '2000-01-01') {
             return '--';
         }
         return $time;
     }
 
+    private static function normalizeTimePrecision($time, bool $isDm)
+    {
+        if (!$isDm || !is_string($time) || !preg_match('/^(\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2})\.\d{1,6}$/', $time, $parts)) {
+            return $time;
+        }
+        $date = \DateTime::createFromFormat('!Y-m-d H:i:s', $parts[1]);
+        if (!$date || substr($parts[1], 0, 4) === '0000' || $date->format('Y-m-d H:i:s') !== $parts[1]) {
+            return $time;
+        }
+        return $parts[1];
+    }
+
     private function maskMobile($mobile)
     {
         $mobile = trim((string)$mobile);