Nintendo of Japan has joined America and Europe in confirming a new Nintendo Direct broadcast for tomorrow. It will follow suit with Europe in being a 3DS-focused broadcast, whereas the North American broadcast is focused on both Wii U and 3DS games.
You’ll be able to watch it live at 23:00 Japan time tomorrow. That’s 6 a.m. Pacific / 9 a.m. Eastern / 2 p.m. UK time—simultaneous with the other broadcasts.