We also store everything in UTC in our database, no other good way to do it I think.

However, once our infrastructure team set up a server using BST - everything...

4 hours after 10pm is not that hard to calculate, regardless of what the clock says.
I don't find daylight savings technically problematic. However, the leap second? - that one...

My databases are stored on servers with 3TB of RAM. Yay! However, on average we get about 1TB of new data per day; our total compressed database size is around...

I find an application developer that agrees with me and we tackle one thing at a time. It's slow but at least there's progress.