Without being more specific it can be anything from 9:30-8/9 PM (most working days) to 9 to “ridiculous early hour of the morning”. Plus there's always 3-4 hours of work on the weekends and holidays. I understand that it is very very stressful but in the end it’s all perspective. I just appreciate the free time I do have more than my friends in other teams/firms/professions. And it’s not forever.