Okay bros, time to estimate the downtime today.

How many hours will bungie go OVER their predicted launch:
10 am PDT (West Coast US)
1 pm EDT (East Coast US)
6 pm BST (UK)
7 pm CEST (Europe)
3 am AEST, July 16 (Australia)

I'll wager that the servers will come up then shit themselves for at least 2 hours before they take it back offline for emergency maintenance, making the game playable roughly 5 hours after the planned release time