As a GM my time is mainly in my own guild and is mainly around organising the bigger things for the guildies such as trials runs (As these are a lot easier and more reliable in a guild than a pug), sorting out trading stuff for everybody, helping newer players with crafting stuff and builds, helping guildies with dungeons etc.
Don't tend to have as much time as I'd like for the whole questing side these days, but trying to think up a few more fun/low key guild events rather than big trials runs (Any ideas welcome