diff --git a/frontend/packages/studio/open-platform/open-auth/src/utils/time.ts b/frontend/packages/studio/open-platform/open-auth/src/utils/time.ts
index 2c112851..e7661296 100644
--- a/frontend/packages/studio/open-platform/open-auth/src/utils/time.ts
+++ b/frontend/packages/studio/open-platform/open-auth/src/utils/time.ts
@@ -13,21 +13,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
- 
+
 import dayjs from 'dayjs';
 import { I18n, type I18nKeysNoOptionsType } from '@coze-arch/i18n';
 
-const MAX_EXPIRATION_DAYS = 30;
-// 1-30 days valid period
 export const disabledDate = (date?: Date) => {
   const today = dayjs().startOf('day'); // Start time of the day
-  const thirtyDaysLater = today.add(MAX_EXPIRATION_DAYS, 'day'); // Date in 30 days
 
-  return (
-    dayjs(date).isBefore(today, 'day') ||
-    dayjs(date).isSame(today, 'day') ||
-    dayjs(date).isAfter(thirtyDaysLater, 'day')
-  );
+  return dayjs(date).isBefore(today, 'day') || dayjs(date).isSame(today, 'day');
 };
 
 export enum ExpirationDate {