Realistic BB Working Hours

Hi all.

I've never worked in banking, but have a bunch of friends who have (and many still do). I have heard many conflicting views on the reality of the working hours at BBs for analysts. The hours will obviously differ from group to group depending on deal flow, but what are the real working hours during the week and the weekend? I emphasize real because I'm interested in hearing from current or former IB analysts, not juniors in high school.

Most people probably have that one friend who stands by the "I work 100+ hours every week" mentality. Although most of my friends on Wall Street say the 100+ hour weeks are possible, they also say those weeks are rare and not the norm.

Some friends (mainly analysts) at BBs have said it's usually around 9:30 am - 12:00 am for Mondays through Thursdays, closer to 9:30 am - 11:00 pm on Fridays, Saturdays off, and 5-6 hours on Sundays. This will obviously vary from group to group, but is this close to the actual working hours for analysts on Wall Street?

From my understanding, the hours have improved in recent years with new company initiatives for "protected Saturdays" and various other initiatives. I assume this to attract talent which might otherwise head to Facebook or Google, as the salaries on Wall Street simply aren't what they used to be.

I realize most groups will probably have occasional 100+ hour weeks with live deals, but what are the average hours like for analysts at BBs?

Any input is much appreciated. All the best.