Bungie will be taking Destiny offline tomorrow for scheduled maintenance to prepare for future content updates. The downtime will begin at 16:00 GMT and will last for approximately 4 hours if everything goes to plan. This means the servers will be back online at 20:00 GMT.
Here’s the official time frame they gave on their blog:
The maintenance window begins around 8AM Pacific.
We’ll be done by (or shortly after) Noon, if all goes according to plan.
You can read more about the maintenance on the Bungie website.