Here’s the current schedule for Ulduar PTR testing starting today:

On the North American test realms:

Hodir – Tuesday Night, March 10 at 7pm EDT/4PM PDT.
Mimiron – Wednesday Night, March 11, starting at 7pm EDT/4pm PDT.
Ignis the Furnace Master – Thursday Night, March 12, starting at 7pm EDT/4pm PDT.
XT-002 Deconstructor – Friday Night, March 13, starting at 7pm EDT/4pm PDT.
Kologarn- Saturday Night, March 14, starting at 7pm EDT/4pm PDT.
Flame Leviathan – Sunday, March 15, starting at 2pm EDT/11am PDT.

On the European test realms:

Auriaya – Wednesday Night, March 11 at 19:00 CET.
Mimiron – Thursday Night, March 12 at 19:00 CET.
Thorim- Friday Night, March 13, at 19:00 CET.
General Vezax – Saturday Night, March 14, starting at 19:00 CET.
Flame Leviathan – Sunday Night, March 15, starting at 19:00 CET.

This schedule could change at a moment’s notice due to server, bug, or patch status. I’ll try to keep everyone informed as much as possible. Ulduar and the bosses to be tested will remain also open a variable length of time. How long they stay open depends upon a host of factors including designer availability, bug status, etc.

We’re very interested in seeing combat logs and parses for all raid testing on the PTR.

Quick Ulduar FAQ:

Q) Where’s all the trash?
A) We don’t have everything turned on for these tests, and this sometimes includes trash creatures before each boss encounter.

Q) Where’s the loot? (UPDATED)
A) 25 player raid bosses should have all of their loot attached.

Q) What about achievements? (UPDATED)
A) After the next PTR build goes live, you’ll see some Achievements in the list. Most all of these are not actually functional yet, and the list is not final.