When I lived in Shanghai, people tended to work pretty hard. By 'pretty hard' I mean foreign teachers would be up early and out the door 5 days a week. Typically, foreign people and people working for foreign companies would work full 8 hour days. At many of the local companies I taught at, local dudes would be cranking 10-12 hour days, 5 days a week (although the reality of this was often a lot of hanging around on QQ doing nothing).
So, all in all, I found people worked fairly long days.
What's the work ethic of Hefei like? I'm hoping it is a bit more relaxed than Shanghai.