Notification and project management

Always seems to be a lack of that. Can't get over it. I was told yesterday of a huge 3 day outage in 10 days. I have apparently been scheduled to do a bunch of late night/early morning work over the weekend. I am out of town that weekend (already planned) and that seemed to throw a huge wrench into their plans. DBA work critical to the application patching... no DBA. They have known for 2 months. First word I got of it was an email from a contractor asking me if I could pick her up at the airport since I will be at the office in the morning on Saturday. I had even booked the monday off and the manager who is supposedly managing this project missed that.