“This clock was created to countdown to the Final Battle. Once one takes the Helmet of Shadows, the clock will start. But be warned, though he who wears the Helmet of Shadows can travel between the Islands at will, once it is removed, the countdown cannot be stopped.”
The Overlord to Lord Garmadon in "The Day Ninjago Stood Still"

The Celestial Clock is a mechanical device that rests atop a high mountain on the Island of Darkness. It is a massive machine with a large clock at its core and several sphere-tipped metal arms rotating around it. It held the Helmet of Shadows until it was removed, then started counting down to the Final Battle.

History

The Day Ninjago Stood Still

After Lord Garmadon raised the Island of Darkness from the sea, The Overlord led him to the Celestial Clock and told him to take the Helmet of Shadows, which allowed the Celestial Clock to begin its countdown. The Overlord later told Lord Garmadon that their ultimate weapon would be ready just in time for the final battle, as dictated by the Celestial Clock. Garmadon then placed his old helmet in its place.

The Last Hope

At the suggestion of Misako, the ninja attempted to halt the countdown by stealing the Helmet of Shadows from Lord Garmadon and returning it to the Celestial Clock. Unfortunately, they were unable to find the Helmet's pedestal in time, replacing it moments after the countdown finally finished. The Celestial Clock proceeded to release beams of energy between the many spheres orbiting its core, eventually firing the ray straight into Lord Garmadon's camp. As the Overlord gloated about the imminent victory of darkness over light, the Garmatron began to take shape within the energy beam of the Celestial Clock.

Sometime later, Chen succeeded in taking a piece of the Celestial Clock and displaying it in his Hall of Fame, along with other objects like Captain Soto's peg leg and Zane's pink gi.

The Forgotten Element

While touring Kai in his Hall of Fame in an attempt to sway the Fire Ninja to his side, Chen boasted over his possession of a gear from the Celestial Clock.

Shadow of Ronin (non-canon)

A part of the Celestial Clock appeared in Chen's Palace, as pointed out by Kai.

Appearances

Ninjago: Masters of Spinjitzu

Season 2: Legacy of the Green Ninja

Season 4: Tournament of Elements

Video games

Gallery

Concept Art

In Ninjago: Masters of Spinjitzu

Objects

Artifacts

Amulet of Protection · Amulets of Wojira (Storm · Wave) · Bell of Divinity · Blade Cup · Book of Spells (Spell of Transformation) · Celestial Clock · Chest Vortex · Dragon Armor (Blade · Chestplate · Helmet · Shield) · Golden Armor · Helmet of Shadows · Idol of Unity · Jadeblade statue · Lantern · Map of Dens · Map of Fangs · Map of the Golden Weapons · Maps of the Oni Mask of Hatred · Medallion · Mirror of Fears · Oni Masks (Deception · Hatred · Vengeance) · Realm Crystal · Sacred Flutes · Scrolls of Airjitzu · Scrolls of Forbidden Spinjitzu · Sphinx · Teapot of Tyrahn · Underworld helmet

Technology

Arcade cabinets · Artificial limbs · BorgPad · BorgWatch · Compact converted jiggly compressor · Infovision · Jay's guitar · Original Prime Empire arcade cabinet · Perfect Match · Prime Empire motherboard · Robo-arm · Robot dogs · Samurai X suit · Shrinking pill · Sparring bot · Spider Hacker · Thermolytic Inverter · Time apparatus · Wu Bots · Zane's Martial Arts Movie Club · Zane's power source

Miscellaneous

Blue Dragon Amulet · Chen's Chair · Cliff Gordon's replica · Credits · Cyrus Borg's statue · Elemental Forges (non-canon) · Energy cubes · Evil statues · Fangpyre skeleton · Fireblock SPF-3000 · Health boards · Hearth Fire · Ice Shackles · Inventories · Jacob's sitar · Kai's headband · Lilly's necklace · Loot boxes · Minidroid Chess · Mister Cuddlywomp · Monastery Mural · Mystery Dust (non-canon) · Nadakhan's pocketwatch · Ninja action figures · Nya's fan · Plundar's dice · Police Commissioner's model boat · Ramne noodle cart · Sea scrolls · Shintaro wings · Soda guzzler · Titanium statue · Vermillion eggs

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