Yeah, it’s difficults to pick a time when EVERYONE can be around. Depending on how long you’re going to be around, I’ll probably get up around 7am. The time zone converter I used said 8pm GMT would be 6am, or 5am if you are in London or thereabouts.
I was just going to edit my post to say that I’ll probably hang around for an hour or two, so you can always come in later! 8pm GMT is 9pm BST in England (they’re on daylight savings), 10pm in CEST where I am, and 6am in Melbourne.
Sounds fun, I’ll be there. :D