User blog comment:Martialmaniac/HxH timeline/@comment-30484460-20161214062633/@comment-5780397-20161215101520

Let's try again. Gon and Killua stated they were 11 during the first Hunter Exam. That's them being 11. Gon turned 12 in March, Killua in July (birthdays from the databook). Killua then took his second Hunter Exam -> January again. That year, they turned 13. Now, that same year, in August, the Hunter Election came (month explicitly stated inside the story). Then, there was a third Hunter Exam (third January of the story). In early July, Mizaistom goes to see Beyond, another indication one more year has passed. We know the exact date because that was 35 days before the Black Whale left harbour, and we have the exact date for that too. It's not misinformation, I'll say that as many times as I need, it's pure math: Gon and Killua can only be 14 now.

Their age wasn't stated to be 12 recently, either. Exactly one year has passed since the last time (the medic). How can you say with certainty they are meant to be still 12? You simply can't. All you can say is that was his age at the beginning of the Chairman Election arc was 12.

The panel with the year is as canonical as the statements referring to Gon's age, you can't just dismiss it. Regardless, it does not influence Gon and Killua's age in the least. It affects their date of birth, but that's it. Their current age is confirmed by their own statements and those of other characters that let us know how long has passed. They were 11 during their debut. Three years have passed. That's it.