Well, you keep talking to that Jaochim guy in P Jeuno, and keep asking for Traverser Stones until you have 3 of them.
When you go into whatever zone, you use all 3 stones for 90 minutes worth of time. The key is to have your group kill as fast as possible, and alternating between WS, Melee and Magic killshots. Eventually chests will fall that can contain time ext's, Cruor (the currency), EXP (up to 1250 per chest!) or temp items. Sometimes later on you'll see augmented items as well.
I've gone in with 3 stones, and ended up spending waaayyy more time than the 90 minutes.
Here's hoping that's not what the fix is about today though..... >.<
Sincerely written from my brother's blood machine,
"Can you still feel the butterflies?" <3