Help Center/ Relational Database Service/ User Guide/ Working with RDS for SQL Server/ Instance Modifications/ Changing a Maintenance Window
Updated on 2025-08-15 GMT+08:00
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Changing a Maintenance Window

Scenarios

The maintenance window is 02:00–06:00 by default and you can change it as required. To prevent service interruptions, you are advised to set the maintenance window to off-peak hours.

Precautions

During the maintenance window, the DB instance will be intermittently disconnected once or twice. Ensure that your applications support automatic reconnection.

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner of the page and choose Databases > Relational Database Service.
  3. On the Instances page, click the target instance name to go to the Basic Information page. Under Maintenance Window, click Configure.

  4. In the displayed dialog box, select a maintenance window and click OK.

    Changing the maintenance window does not affect the execution time of the scheduled tasks in the original maintenance period.

Parent topic: Instance Modifications