Omega Sector is a themed dungeon at Ludus Lake, at the foot of Eos Tower, for players of level 165 and above.
Take a journey to Omega Sector
Player Lv. 165 and above can access the Omega Sector by traveling to Ludus Lake and using the portal at the base of Eos Tower on the 1st floor.
The Temple of Time is one of the seven Osserian regions that comprise the city of Three Doors and exist in the past, present and future. Here resides the goddess of time, Rhinne. This region can be reached from the station in Leafre by transforming into a Baby Draco via Corba.
Go to the Ludibrium and Eos Tower.
Further down to the first floor. There should be a portal there Omega sector below.
First things first, You should be at least level 91 to access the first Temple of Time progression quest. You can get the intro quest at 90 but you have to be 91 to get the next part. From there, the quests require you to kill 999 specific enemies that typically only appear on a specific Temple of Time map as you progress.
The Temple of Time is available after completing Chapter 15 in the Campaign or reaching VIP Rank 13.