I think this depends on lot on the team's culture and the company culture. When a company serves lunch, teams tend to eat together and can get done in 30 minutes without rushing.

Not even close to SV, but that's my schedule as well, though I'm at the computer half an hour earlier.

I'm in Argentina btw.

If we go out, 1 hour. If we eat in, 30 minutes. There will also be several smaller breaks during the day.