Grammar › N1 · 01 Conditions and hypotheticals
〜ともなると: when it comes to; once it gets to
N1 · 01 Conditions and hypotheticals
Says that once a person or situation reaches a high or special status, a natural result follows.
Noun (rank, age, event) + ともなると, followed by a statement about what is normal at that level. Often has the feeling "naturally, at that point". Compare 〜ともなれば, almost the same.
Examples
社長ともなると、毎日の予定が分刻みで埋まっている。
Once you become a president, your schedule is packed minute by minute every day.
年末ともなると、どの店も買い物客でごった返す。
When it gets to the end of the year, every shop is crowded with shoppers.