Created_At not working

[karthik1987]

I'm importing reviews with old data but created_at is not accepting the given input instead taking the current timestamp

$reviewData = [ "review" => [ "title" => $data[2], "detail" => $data[3], "nickname" => $data[0], "ratings" => [ [ "rating_name" => "Rating", "value" => 5 ], [ "rating_name" => "Quality", "value" => 5 ] ], "review_entity" => "product", "review_status" => 1, "entity_pk_value" => 1, "created_at" => $new_date ] ];