https://www.gamespot.com/articles/heres-destiny-2s-release-date-unlock-time-and-conf/1100-6453052/

With Destiny 2's release coming up next week, Bungie has now answered more key details about the launch and more. Starting off, Bungie confirmed when the game's servers will go live: it'll be a rolling midnight release across the world. In other words, you can start playing at 12 AM on September 6 in your country. In the US, this means the servers will unlock at midnight ET. While Destiny 2 won't unlock until September 6, people on PlayStation 4 and Xbox One can begin pre-loading now.

Bungie also confirmed when Destiny 2's first Nightfall Strikes, Raid, and Trials will launch. The Nightfall Strikes will be available right away, while the Raid kicks off at 10 AM PT / 1 PM ET / 6 PM BST on September 13 (3 AM AET on September 14 in Australia). Trials will become available at the same time on September 15 (16 in Australia).