Any chance that this could be like a regular time each day, rather than just a random time with 15 minutes warning?

This may seem inconcievable, but I've played other MMO games and they seem to manage it ok.

Also the message that's sent out:
"In most circumstance daily maintenance will last for 15 minutes."
This is an absolute lie, the server is never down for only 15 minutes, let alone "in most circumstances"

Thank you for your understand and patience