What is the maximum time-box for a Sprint Planning meeting for a monthly Sprint?

For a monthly Sprint, the maximum time-box for a Sprint Planning meeting is indeed 8 hours. This duration is aligned with the guidance provided in the Scrum Guide, which specifies that Sprint Planning should be time-boxed to a maximum of eight hours for a one-month Sprint.

The purpose of the time-box is to ensure that the Sprint Planning meeting remains productive and focused, facilitating effective collaboration among team members and allowing for sufficient time to define a clear and actionable Sprint Goal, as well as determining the work that will be included in the Sprint backlog.

While shorter Sprints would have a correspondingly shorter time-box for their planning sessions, the 8-hour duration for a monthly Sprint allows for comprehensive discussions involving the entire Scrum Team, ensuring that there is a shared understanding of the work to be done. This structure helps in optimizing the planning process while preventing it from extending unnecessarily, which can lead to fatigue or reduced engagement among team members.