Except that they count up in the NHK cup, going . . . . . . . . . . 10秒. . . . . . . . . . 20秒. . . . . 25秒. . . 28秒. . 30秒 (player X, you’re entering your Yth thinking period, there are 10-Y periods left).
For the last period they’l count . . . . . . . . . . 10秒 . . . . . . . . . . 20秒 1 2 3 4 5 6 7 8 9
No idea what comes after that, since I haven’t witnessed a time-out yet (but I did find an accidental one, presumably the referee will say 30秒 and act confused 
)