Child who turns 6 in the calendar year I travel to Japan

Hi there,

No, as long as he is below the age of 6 when you are traveling. Are you traveling at any point in Japan when he has become 6, then a child pass or ticket is required?

Note that some limitations apply, for instance, he will not be entitled to his own seat and you are expected to keep your child on your lap when trains are busy.

Hope this helps,
Daniel