Users should have some sort of warning/notice that the CMS is going into maintenance mode/available after maintenance mode before/during/after the bi-weekly deployments.
Thank you so much for proposing this great Idea! We are very excited to notify you that your Idea has been implemented. We introduce a new process for notifying users about imminent CMS releases via in-app notification alerts.
If you are interested to learn more, refer to the release notes link: Release Notes
Please contact us if you have any questions about the feature.
I would vote for moving maintenance hours to 5pm -7pm PST or EST or Friday afternoons or weekends.