If you have already planned hangouts or planning to host hangouts on air tonight then this maintenance downtime announcement may be of interest to you.

Today i.e 11th June between 7pm – 8pm PDT, YouTube/Hangouts on Air are undergoing a planned sitewide maintenance and the maintenance team is advising to avoid hangouts on air during that time.

YouTube / Hangouts on Air (HOA) maintenance!

Services affected during maintenance

• Users will not be able to create, start or stop YouTube Live or Hangout On Air events during this time. (Plan on starting the events before 7pm Pacific).
• Users will not be able to comment, like a video, or create playlists.
• cms.youtube.com and ads.youtube.com will be unavailable.
• Dropbox will be in read-only mode (You can drop content but it will not be processed until maintenance is complete).
• Users will still be able to search, watch, rent videos, & subscribe to channels.
• Users can also upload videos, but there’ll be a delay in processing of their videos.

So please be informed and plan your hangouts either before or after this downtime.