Asian work ethic
If you know much about asian countries, in many white collar jobs, asians work from 8am - 8pm. As one Singaporian friend put it to me at one point, work collegues eat together at 7am for breakfast to talk work, work all day, then go out afterwards for drinks and talk work. Other asian countries seem not much different.
Our western centric reaction to this is that is crazy? What about your 'me' time, your time for 'self' and for relaxing? I wonder if it could be related to the fact that it was not long ago that for an asian, working meant you own a shop, sleep upstairs, come downstairs when you get up and work, and then go back upstairs to bed.