# Maintenance Windows

Returns, edits, and removes maintenance windows. The maintenance procedure that MongoDB Cloud performs requires at least one replica set election during the maintenance window per replica set. You can defer a scheduled maintenance event for a project up to two times. Deferred maintenance events occur during your preferred maintenance window exactly one week after the previously scheduled date and time.


## Operations
- [Return One Maintenance Window for One Project](https://www.mongodb.com/pt-br/docs/api/doc/atlas-admin-api-v2/2025-03-12/operation/operation-getgroupmaintenancewindow.md)
- [Reset One Maintenance Window for One Project](https://www.mongodb.com/pt-br/docs/api/doc/atlas-admin-api-v2/2025-03-12/operation/operation-resetgroupmaintenancewindow.md)
- [Update One Maintenance Window for One Project](https://www.mongodb.com/pt-br/docs/api/doc/atlas-admin-api-v2/2025-03-12/operation/operation-updategroupmaintenancewindow.md)
- [Toggle Automatic Deferral of Maintenance for One Project](https://www.mongodb.com/pt-br/docs/api/doc/atlas-admin-api-v2/2025-03-12/operation/operation-togglegroupmaintenancewindowautodefer.md)
- [Defer One Maintenance Window for One Project](https://www.mongodb.com/pt-br/docs/api/doc/atlas-admin-api-v2/2025-03-12/operation/operation-defergroupmaintenancewindow.md)

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