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“Control time... control EVERYTHING!”
Acronix and Krux
Affiliation Time Twins
Weapon of choice Time Blades
Nin-Jo (formerly)
Element Time
Mind (with helmet)
First Appearance The Hands of Time
70626 Dawn of Iron Doom
Status Unknown
Voiced by Ian Hanlin

Acronix is one of the Time Twins and the younger sibling of Krux.


40 years prior to the events of Hands of Time, Acronix and his brother Krux were the original Elemental Masters of time. While Krux could go back in time and pause time, Acronix could go forward in time and slow down time. Although Acronix used these powers to great advantage, he was still a very skilled warrior without them.

After the Serpentine were defeated by the Elemental Alliance, Acronix and Krux, knowing that they were more powerful than the other Elemental Masters, decided to betray the alliance and use their powers to control all of Ninjago. The other Elemental Masters fought against Acronix and Krux, but the two proved too powerful. With the Time Blades forged by Ray and Maya, Wu and Garmadon fought a lengthy battle against the Time Twins at the Monastery of Spinjitzu. Eventually, Wu and Garmadon used the Time Blades to absorb Acronix and Krux's elemental powers, rendering them normal men.

Knowing that the power to control time was dangerous, Wu and Garmadon used the Time Blades to open a vortex that would leave the Time Blades lost forever. However, Acronix and Krux decided to go through the vortex themselves, which left the two "lost to time." Acronix would be lost in the time vortex for 40 years. However, unbeknownst to Acronix, Krux was somehow immediately teleported back to Ninjago and experienced a vision of the future foretelling of Acronix's return.

Dark Island Trilogy, Part 3

Falling asleep at home following his battle with Clouse, Wu would be stricken by a horrible nightmare filled with several visions of the past, such as the return of Acronix and Krux.

The Hands of Time

Forty years after the monastery battle, Acronix emerged from the time vortex at the ruins of the old monastery. There, he unexpectedly was confronted by Master Wu. Eventually, a battle between the two broke out. After nearly falling to his death, the Forward Time Blade lands in the center courtyard and causes time to skip a minute, ultimately saving him and allowing him to claim the weapon. With the blade, he succeeded in accelerating Wu's growth, making him feel older. When the Ninja interfered, he defeated them with ease and headed to the Ninjago History Museum to meet someone after being assumed dead. When he arrived to the museum, Dr. Saunders revealed his identity of being Krux as they hugged and began plotting their revenge.

Abducting Cyrus Borg

Abducting Ninjago Mechanics Description

Because Acronix was carried off inside the Time Vortex, the past 40 years have gone by for him in the blink of an eye. So while his brother Krux aged in real time over the four decades, Acronix looks just the same as when he disappeared. As an Elemental Master of Time, Acronix could manipulate time forward, both with great speed or in slow motion. Although Wu and Garmadon stripped him of those powers, he remained a tactical fighter who Wu described as one of the best he’s ever seen. Acronix’s skill with any weapon can lead him to be overconfident at times, and he will throw himself into a fight like a blunt object with little concern for the consequences… mostly because he’s sure there’s no way he could ever lose! Acronix loves all the technology and gadgetry he never experienced because he missed the last 40 years. His favorite is the BorgWatch.[1]


LEGO Ninjago: Masters of Spinjitzu

Season 7: The Hands of Time

Dark Island Trilogy



  • Like Lloyd, Acronix's hair piece was originally used for a Star Wars character, as a brown version was first released with Qui-Gon Jinn.
  • Acronix is named after Acronis, a digital file sharing software used for processing the show.
  • Acronix is three minutes younger than Krux.
  • Acronix has a crush on Commander Machia, as noted in "A Line in the Sand."
  • While Krux loathes modern life, Acronix is fascinated by all of Ninjago's advancements in technology.
  • Before having his powers drained by Wu and Garmadon, Acronix was able to fast forward and slow down the flow of time.




Master Wu · Cole · Zane · Jay · Nya · Kai · Lloyd
Allies: Misako · Dr. Julien · Falcon · Sensei Garmadon · Cyrus Borg · P.I.X.A.L. · Ronin


Samukai · Wyplash · Kruncha · Frakjaw · Chopov · Nuckal · Krazi · Bonezai


Anacondrai: Arcturus · Pythor P. Chumsworth
Fangpyre: Fangtom · Fangdam · Fang-Suei · Snappa
Venomari: Acidicus · Lizaru · Spitta · Lasha · Zoltar
Constrictai: Skalidor · Bytar · Chokun · Snike
Hypnobrai: Skales · Slithraa · Mezmo · Rattla
Other: The Great Devourer

Stone Army

Creator: The Overlord
General Kozu · Giant Stone Warrior · Stone Warrior · Stone Swordsman · Stone Scout


Creator: OverBorg
General Cryptor · Nindroid Drone · Nindroid Warrior · Min-Droid

Anacondrai Cultists

Chen · Clouse · Zugu · Eyezor · Kapau · Chope · Krait · Sleven

Elemental Masters

Ash · Bolobo · Master of Light · Paleman · Karlof · Tox · Shade · Neuro · Master of Gravity · Gravis · Griffin Turner · Maya · Ray · Skylor

Ghost Warriors

Leader: The Preeminent
Morro · Chain Master Wrayth · Blade Master Bansha · Scythe Master Ghoultar · Bow Master Soul Archer
Ghost Ninja: Attila · Hackler · Howla · Ming · Spyder · Wooo
Ghost Warriors: Cowler · Cyrus · Ghurka · Pitch · Pyrrhus · Wail · Yokai

Sky Pirates

Leader: Nadakhan
Flintlocke · Dogshank · Doubloon · Monkey Wretch · Clancee · Bucko · Sqiffy · Cyren


Acronix · Krux · General Machia · Commander Raggmunk · Commander Blunck · Vermin · Rivett · Slackjaw · Tannin


Grundle · Spykor · Starteeth · The Leviathan · Treehorn · Craglings · Mud Monsters · Ice Serpent · Walliper
Dragons: Fire Dragon · Lightning Dragon · Earth Dragon · Ice Dragon · Ultra Dragon
Elemental Dragons: Golden Dragon · Elemental Earth Dragon · Elemental Fire Dragon · Elemental Form Dragon · Elemental Gravity Dragon · Elemental Lightning Dragon · Elemental Metal Dragon · Elemental Mind Dragon · Elemental Nature Dragon · Elemental Poison Dragon · Elemental Shadow Dragon · Elemental Smoke Dragon · Elemental Speed Dragon · Titanium Dragon


Bizarro Ninja · Brad Tudabone · Carridi · Cathy · Dareth · Ed · Edna · First Spinjitzu Master · First Mate · Fred Finley · Gayle Gossip · Gene · Genn · Hibiki · Lou · Mistaké · Night Watchman · Noonan · O'Doyle · Patty Keys · No-Eyed Pete · Postman · Rufus Macallister · Warden Noble · Sally · Simon · Captain Soto · Tommy · Tour Bus Driver · Phantom Ninja · Rachel Sparrow · Suzie Wheeler · Sensei Yang

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