MU Online events

MU Online Events

See upcoming MU Online events, start times and who joined. Track Castle Siege, Icewind, Arca Battle and more.

Next event up
Blood Castle All realms
Starts in --:--:--
See event times in your timezone
All event times are stored in UTC (server time) and converted to your selected timezone.
Current time in selected zone: --

Upcoming MU Online events

Event type
Realm
Blood Castle All realms
--:--:--
  • Registration opens: --
  • Start --
  • End --
View full schedule
  • Daily times (UTC): 00:10, 00:40, 01:10, 01:40, 02:10, 02:40, 03:10, 03:40, 05:10, 07:10, 09:10, 11:10, 13:10, 15:10, 17:10, 19:10, 21:10, 21:40, 22:10, 22:40, 23:10, 23:40
  • Registration: Opens 5 min before each start time
  • Duration: 15 min
Arca War Arka
--:--:--
  • Start --
  • End --
View full schedule
  • Monday (UTC): 02:00, 08:00, 14:00, 20:00
  • Wednesday (UTC): 02:00, 08:00, 14:00, 20:00
  • Friday (UTC): 02:00, 08:00, 14:00, 20:00
  • Saturday (UTC): 02:00, 08:00, 14:00, 20:00
Crywolf All realms
--:--:--
  • Start --
View full schedule
  • Invasion times (UTC): 02:10, 05:10, 08:10, 11:10, 14:10, 17:10, 20:10, 23:10
Boss Battle Together All realms
--:--:--
  • Start --
  • End --
View full schedule
  • Every day start: Daily 08:15 (server time / UTC) --:--:--
  • Every day start: Daily 12:15 (server time / UTC) --:--:--
  • Every day start: Daily 16:15 (server time / UTC) --:--:--
  • Every day start: Daily 20:15 (server time / UTC) --:--:--
  • Every day start: Daily 00:15 (server time / UTC) --:--:--
  • Every day start: Daily 04:15 (server time / UTC) --:--:--
Ice Wind Valley Arka
--:--:--
  • Registration opens: --
  • Start --
  • End --
View full schedule
  • Schedule (UTC): Daily – starts at 14:30 (60 min), registration 14:25 (+5 min)
Chaos Castle All realms
--:--:--
  • Registration opens: --
  • Start --
  • End --
View full schedule
  • Gate open times: 01:00, 15:00, 17:00, 19:00, 21:00, 23:00
  • Event start: Starts 5 min after gate opens
  • Duration: 15 min
Castle Siege Arka
--:--:--
  • Registration opens: --
  • Start --
  • End --
View full schedule
  • Guild registration (UTC): Sun 2026-03-01 00:00 --:--:--
  • Register Mark of the Lord (UTC): Thu 2026-03-05 00:00 --:--:--
  • Attack guild notification (UTC): Fri 2026-03-06 00:00 --:--:--
  • Ready for Castle Siege (UTC): Fri 2026-03-06 23:00 --:--:--
  • Castle Siege start (UTC): Sat 2026-03-07 17:00 --:--:--
  • Castle Siege end (UTC): Sat 2026-03-07 18:00 --:--:--
  • End of Castle Siege cycle (UTC): Sun 2026-03-08 00:00 --:--:--
How the timers work

Times are stored in UTC and converted to your selected timezone. Live and registering events are highlighted automatically.

  • All event times are stored in server time (UTC) and converted to your local timezone.
  • Use the filters to focus on one event type like Blood Castle, Castle Siege or Boss Battle Together.
  • Cards are sorted by next start time, with live and registration windows highlighted automatically.

Global registration overview

Quick overview of the next registration openings for each event across all realms (server time / UTC).

Event Arka
Blood Castle --:--:--
Arca War --:--:--
Crywolf --:--:--
Boss Battle Together --:--:--
Ice Wind Valley --:--:--
Chaos Castle --:--:--
Castle Siege --:--:--

Registration times are shown in server time (UTC). Use the converter above to see them in your local time.