This topic describes how to set the maintenance window of an ApsaraDB RDS instance. To ensure database stability, the backend system performs maintenance operations on your RDS instance every day during the maintenance window you specify. The default maintenance window spans from 02:00 to 06:00 UTC+8. We recommend that you set the maintenance window to off-peak hours to avoid interference to your business.

For more information, see Set the maintenance window of an ApsaraDB RDS MySQL instance.