Officially, the working hours of a deck cadet are 12 hours, but in reality it exceeds 12-hour mark.

It seems you're looking for a discussion about the working hours of a deck cadet, particularly how the official hours differ from the actual hours worked.

Deck cadets, typically involved in training on maritime vessels, are expected to work officially for 12 hours a day. However, the reality often entails a more demanding environment where cadets may work significantly more than the stipulated hours.

This discrepancy can arise due to various factors such as:

1. Operational Demands: Vessels operate under various conditions which may require extended hours to ensure safety and efficiency. Emergencies, maintenance, and navigation activities often do not adhere to a strict schedule.

2. Training Requirements: As part of their training, cadets may have additional responsibilities that push their working hours beyond the official limit.

3. Crew Availability: In scenarios where there aren’t enough crew members available, cadets may have to take on extra shifts to cover for others.

4. Legal and Institutional Factors: In some regions, maritime labor laws may not be strictly enforced, leading to longer working hours for cadets than officially mandated.

This practice can lead to fatigue and stress, impacting both the physical and mental well-being of cadets. It's essential for the maritime industry to address these issues, possibly by re-evaluating work schedules, ensuring adequate rest periods, and promoting a healthy work-life balance. Regular audits and adherence to maritime labor standards could help in mitigating excessive work hours for deck cadets.