Following the work with Bungie forums yesterday, it seems Destiny the game will go down on all platforms for October 13 maintenance today. The scheduled time for this outage is set at 9AM PST, or 5PM in the UK, when the servers will be taken offline only for 2 hours.
If all goes to plan without any extra problems, then you can expect the Destiny servers to return at 11AM PST / 7PM BST on Oct 13, 2015. On the official Bungie status page, they didn’t explain too much about the downtime today and just referenced it as “work” and “offline for maintenance”.
As normal with scheduled maintenance, if you are signed into Destiny then you will receive a message on PS4 / PS3 or Xbox One / 360 via in-game messaging. You will be able to login to Destiny again once the maintenance is completed, also you might find issues signing into certain Bungie website services and also the companion app on Android/iOS.
You can see the official statement above that details the downtime today. This also includes a warning across all of Bungie’s support pages in regard to a patch being pushed live today.