AION 2 Event TimerWorld bosses, Artifact Siege & Shugo Festival (Asia server, JST)
Every timed boss and event in AION 2 in one list, sorted by what starts next, with live countdowns in server time (JST, UTC+9) and your own time zone. Tick the bell to get a browser alert before an event.
Up next
| Event | Schedule | Next | Your time | Starts | Alert |
|---|---|---|---|---|---|
| EventSpacetime Rift | Every 3 h from 02:00 | ||||
| EventShugo Festival | Every hour at :00 | ||||
| EventDimensional Invasion | Every hour at :30 | ||||
| BossWatcher Kaira | Every 3 h from 01:00 | ||||
| PvPArena of Tactics (day) | Daily 11:00–14:00 | ||||
| PvPArena of Tactics (evening) | Daily 19:00–21:00 | ||||
| PvPArtifact Siege | Mon/Thu/Sat 21:00 | ||||
| BossExecutors Tamasa, Argo & Kaira | Mon/Thu/Sat 21:30 | ||||
| BossGuardian Lord Nahma | Sun/Fri 21:00 | ||||
| ResetDaily reset | Daily 16:00 | ||||
| ResetWeekly reset | Wed 16:00 |
Alert memin before each ticked event (while this tab is open).
Weekly calendar (Monday–Sunday)
Every day: Spacetime Rift (Every 3 h from 02:00), Shugo Festival (Every hour at :00), Dimensional Invasion (Every hour at :30), Watcher Kaira (Every 3 h from 01:00), Arena of Tactics (day) (11:00–14:00), Arena of Tactics (evening) (19:00–21:00), Daily reset (16:00).
| Day | Events that day (JST) |
|---|---|
| Monday | 21:00 Artifact Siege21:30 Executors Tamasa, Argo & Kaira |
| Tuesday | — |
| Wednesday | 16:00 Weekly reset |
| Thursday | 21:00 Artifact Siege21:30 Executors Tamasa, Argo & Kaira |
| Friday | 21:00 Guardian Lord Nahma |
| Saturday | 21:00 Artifact Siege21:30 Executors Tamasa, Argo & Kaira |
| Sunday | 21:00 Guardian Lord Nahma |
World boss spawn times
Only the Lv 65 Abyss bosses in Chaotic Lower Reshanta spawn on a fixed clock:
| Boss | Spawns (JST) | Where |
|---|---|---|
| Watcher Kaira | Every 3 h from 01:00, leaves after ~30 min | Abandoned Island |
| Guardian Lord Nahma | Fri & Sun 21:00 | Reshanta's Root, Shade Island, Lonely Island |
| Executor Tamasa | Mon, Thu & Sat 21:30 | Reshanta's Root |
| Executor Argo | Mon, Thu & Sat 21:30 | Siel's Heart |
| Executor Kaira | Mon, Thu & Sat 21:30 | Branding Island |
Regular field bosses in Verteron, Altgard and other zones have no fixed time: the respawn timer starts when the boss is killed, so the same boss can be up at noon one day and at dawn the next.
Artifact Siege
- Monday, Thursday and Saturday at 21:00 JST in Chaotic Lower Reshanta.
- A Lv 65 Dimensional Core appears at each of the three artifacts; the faction that lands the last hit takes it. Engraving takes 7 seconds.
- The siege ends early once all three artifacts are captured; a warning shows 10 minutes before the end.
- Holding artifacts gives your faction +2.5% / +5% / +7.5% Abyss Points (1 / 2 / 3 artifacts).
- Afterwards an Abyss Corridor entrance opens at each artifact for the faction that holds it, and the Executors spawn at 21:30.
Shugo Festival and Dimensional Invasion
The Shugo Festival runs every hour at :00: one of nine minigames (Jump Jump, Wraith Evasion, Mysterious Track, Hidden Lugi, Goldrin's Treasure, Defend Shugo Merchants, Up! Up! Up!, Not This Tile? and more). Entry is open for about 3 minutes and a round lasts 3–5 minutes. Rewards need a key: 3 refill per day, up to 12.
Dimensional Invasion starts every hour at :30: Beritra Air Raid, Accursed Sword or Incursion of the Spirits. Entry is open about 3 minutes and the invasion lasts about 10. Keys refill 1 per day, up to 7.
Arena of Tactics and resets
The 10 vs 10 Arena of Tactics is open daily 11:00–14:00 and 19:00–21:00 JST. The 1 vs 1 and 5 vs 5 arenas match at any time. Arenas unlock at Lv 45 and every match has a 10-minute limit.
Daily reset is 16:00 JST (07:00 UTC) and weekly reset is Wednesday 16:00 JST, the same moment on every Global server.
FAQ
When do world bosses spawn in AION 2?
Only the Abyss bosses in Chaotic Lower Reshanta run on a fixed clock: Watcher Kaira every 3 hours from 01:00, Guardian Lord Nahma on Friday and Sunday at 21:00, and Executors Tamasa, Argo and Kaira on Monday, Thursday and Saturday at 21:30, right after the Artifact Siege (Asia server, JST). Other field bosses respawn a set time after they are killed, so they have no fixed hour.
What time is the Artifact Siege?
Monday, Thursday and Saturday at 21:00 JST on the Asia server. Elyos and Asmodians fight over three artifacts in Chaotic Lower Reshanta; the siege ends early once all three are captured.
When does the Shugo Festival start?
Every hour on the hour. Entry stays open for only about 3 minutes. You need a reward key to claim rewards: keys refill 3 a day and cap at 12 (21 with membership).
When is the Arena of Tactics open?
Daily 11:00–14:00 and 19:00–21:00 JST. It is the 10 vs 10 arena; the 1 vs 1 and 5 vs 5 arenas have no schedule.
Are Global event times the same on every server?
The Global regions share one UTC+9 server clock, so events start at the same moment worldwide; this page shows them in JST and in your own time zone. Daily reset is 16:00 JST (07:00 UTC) and weekly reset is Wednesday at the same time. Korea and Taiwan are separate services with their own schedule.
Why are there two bosses called Kaira?
They are different bosses. Watcher Kaira appears every 3 hours on Abandoned Island; Executor Kaira appears after the Artifact Siege on Branding Island.
NCSOFT has not published official Global event times. These come from client data, other timer sites and player reports (as of 17 October 2026); trust the game if it shows something else. See also theAION 2 Spacetime Rift timer, Hidden Cubes and pets.