After the Nintendo Switch debuted this October, it was announced shortly thereafter that new details about the console would be announced on January 12th, 2017. And now, we know the exact time of day the presentation will occur: 8 p.m. PST (11 p.m. EST, 10 p.m. CST, 9 p.m. MST).
— Nintendo of America (@NintendoAmerica) December 13, 2016
The livestream will be broadcast simultaneously around the world, as Nintendo’s Japanese Twitter account has announced the stream at the same time (1 p.m. JST, on the 13th for them). No other details are known at this time, but we’ll be sure to provide them as they come in.