I am in the US and try to do 9-5, plus or minus an hour on the start time, sometimes leaving at 4pm. And while I am usually among the first to leave the office, I don't feel guilty about leaving by 5 any longer considering the occasional odd hour conference call and late night work that pops up.

I miss out on time with my family if I leave later than 5, and I prioritize that over looking busy in the office. After 5 my mental capacity and productivity is dwindling anyways.

Would love to stay on DST and never go back. Kids don't sleep in an extra hour. It makes for a rough week.