diff --git a/modules/EcommerceFinance/Services/BusinessMirrorSynchronizer.php b/modules/EcommerceFinance/Services/BusinessMirrorSynchronizer.php
index c46b391a..6d36af0b 100644
--- a/modules/EcommerceFinance/Services/BusinessMirrorSynchronizer.php
+++ b/modules/EcommerceFinance/Services/BusinessMirrorSynchronizer.php
@@ -106,7 +106,6 @@ class BusinessMirrorSynchronizer
         ?Carbon $windowEnd,
         int $limit,
     ): array {
-        $names = array_map(fn (array $column): string => (string) $column['column_name'], $columns);
         $order = $this->orderColumns($dataset, $mode);
         $where = [];
         $bindings = [];
@@ -129,7 +128,7 @@ class BusinessMirrorSynchronizer
         }
 
         $sql = 'SELECT TOP (' . $limit . ') '
-            . implode(', ', array_map(fn (string $name): string => $this->quote($name), $names))
+            . implode(', ', array_map(fn (array $column): string => $this->selectExpression($column), $columns))
             . ' FROM ' . $this->quote($dataset->sourceSchema()) . '.' . $this->quote($dataset->sourceObject())
             . ($where === [] ? '' : ' WHERE (' . implode(') AND (', $where) . ')')
             . ' ORDER BY ' . implode(', ', array_map(fn (string $name): string => $this->quote($name), $order));
@@ -137,6 +136,22 @@ class BusinessMirrorSynchronizer
         return $this->queries->forSource($dataset->sourceKey())->select($sql, $bindings);
     }
 
+    /** @param array<string,mixed> $column */
+    private function selectExpression(array $column): string
+    {
+        $name = (string) $column['column_name'];
+        $quoted = $this->quote($name);
+
+        // FreeTDS may return SQL Server date values using the connection locale
+        // (for example "Jan 1 2026"). Convert temporal columns at the source so
+        // every mirror receives deterministic ISO values that MariaDB accepts.
+        return match (strtolower((string) ($column['data_type'] ?? ''))) {
+            'date' => 'CONVERT(varchar(10), ' . $quoted . ', 23) AS ' . $quoted,
+            'datetime', 'datetime2', 'smalldatetime' => 'CONVERT(varchar(27), ' . $quoted . ', 126) AS ' . $quoted,
+            default => $quoted,
+        };
+    }
+
     private function sqlServerDateTime(?Carbon $value): ?string
     {
         // ISO 8601 with millisecond precision is accepted consistently by SQL Server
diff --git a/tests/Unit/EcommerceFinance/BusinessMirrorSynchronizerTest.php b/tests/Unit/EcommerceFinance/BusinessMirrorSynchronizerTest.php
index 4a206e8c..93c65ee1 100644
--- a/tests/Unit/EcommerceFinance/BusinessMirrorSynchronizerTest.php
+++ b/tests/Unit/EcommerceFinance/BusinessMirrorSynchronizerTest.php
@@ -69,6 +69,7 @@ class BusinessMirrorSynchronizerTest extends TestCase
             $this->column('Id', 1, 'int', null),
             $this->column('updateTime', 2, 'datetime2', null),
             $this->column('displayName', 3, 'nvarchar', 120),
+            $this->column('businessDate', 4, 'date', null),
         ]);
 
         $this->query = new FakeBusinessMirrorQuery();
@@ -88,8 +89,8 @@ class BusinessMirrorSynchronizerTest extends TestCase
     public function test_full_sync_materializes_complete_table_and_marks_state_ready(): void
     {
         $this->query->batches = [[
-            ['Id' => 1, 'updateTime' => '2026-08-14 10:00:00.1234567', 'displayName' => '一号'],
-            ['Id' => 2, 'updateTime' => '2026-08-14 11:00:00.0000000', 'displayName' => '二号'],
+            ['Id' => 1, 'updateTime' => '2026-08-14 10:00:00.1234567', 'displayName' => '一号', 'businessDate' => '2026-08-14'],
+            ['Id' => 2, 'updateTime' => '2026-08-14 11:00:00.0000000', 'displayName' => '二号', 'businessDate' => '2026-08-15'],
         ]];
 
         $result = $this->synchronizer->sync('test.dbo.records', true, 10, 1);
@@ -105,6 +106,8 @@ class BusinessMirrorSynchronizerTest extends TestCase
         $this->assertNotNull($state->initial_completed_at);
         $this->assertSame(2, (int) $state->mirror_row_count);
         $this->assertStringContainsString('SELECT TOP (10)', $this->query->calls[0]['sql']);
+        $this->assertStringContainsString('CONVERT(varchar(27), [updateTime], 126) AS [updateTime]', $this->query->calls[0]['sql']);
+        $this->assertStringContainsString('CONVERT(varchar(10), [businessDate], 23) AS [businessDate]', $this->query->calls[0]['sql']);
         $this->assertStringContainsString('ORDER BY [Id]', $this->query->calls[0]['sql']);
     }