https://www.polygon.com/2017/10/19/16503416/destiny-2-server-maintenance-offline-update-1-0-3-5

Destiny 2’s latest bout of server downtime is coming today, with Bungie taking the game offline for a few hours to conduct maintenance and push a new patch.

Maintenance began at 11 a.m. ET, so players can no longer sign in to Destiny 2. An hour later, at noon ET, anybody who’s still playing will be booted out to the title screen.