Chapter 599 + other official sources:
* Obito: circa 4(x years 7 months) years older than Kakashi
# Academy = started along with Kakashi, as of age 8, graduated at 9
# Chunin = failed the exams twice, once at 9, then at 10 and succeed as 11 years old
* Kakashi: circa 4(x years 7 months) years younger than Obito
# Academy = started along with Obito, as of age 4, graduated at 5
# Chunin = promoted at 6
# Jounin = 7
[When Obito succeed to become Chunin at 11, Kakashi was 7 and as of chapter 599 it was a recent promotion, thus they went fighting to the 3rd Shinobi World War right after]
Kakashi was 1 month after his 14th's birthday during the Fox's attack.
When Kakashi turned 30 in Shippuden, it was 15 years and 11 months after Obito's/Tobi's Fox attack.
Thus Obito/Tobi fought Minato as 19 years old man.
So Obito's:
* Age at the time of a presumed death/Gaiden: 11
* Fighting Minato/4th Hokage: 19
* Part II: 34-35
He had circa 8 years to train under Madara and turn evil, the original presumed timeline didn't work and had errors because everyone assumed Kakashi and Obito being the same age, but that doesn't appear to be the case.
This would mean that the 3rd Shinobi World War lasted at least 6-7 years;
Opinions are welcome.
* Obito: circa 4(x years 7 months) years older than Kakashi
# Academy = started along with Kakashi, as of age 8, graduated at 9
# Chunin = failed the exams twice, once at 9, then at 10 and succeed as 11 years old
* Kakashi: circa 4(x years 7 months) years younger than Obito
# Academy = started along with Obito, as of age 4, graduated at 5
# Chunin = promoted at 6
# Jounin = 7
[When Obito succeed to become Chunin at 11, Kakashi was 7 and as of chapter 599 it was a recent promotion, thus they went fighting to the 3rd Shinobi World War right after]
Kakashi was 1 month after his 14th's birthday during the Fox's attack.
When Kakashi turned 30 in Shippuden, it was 15 years and 11 months after Obito's/Tobi's Fox attack.
Thus Obito/Tobi fought Minato as 19 years old man.
So Obito's:
* Age at the time of a presumed death/Gaiden: 11
* Fighting Minato/4th Hokage: 19
* Part II: 34-35
He had circa 8 years to train under Madara and turn evil, the original presumed timeline didn't work and had errors because everyone assumed Kakashi and Obito being the same age, but that doesn't appear to be the case.
This would mean that the 3rd Shinobi World War lasted at least 6-7 years;
Opinions are welcome.
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