To solve this problem:

1. Flight time: Nina's flight departs at 11:30.
2. Required airport arrival: She needs to arrive 2 hours earlier, which is 9:30.
3. Latest possible train: The train that arrives at 9:28 is the latest one that gets her to the airport on time.

From the timetable:

• The departure time for the train arriving at 9:28 is 9:11.
• The train journey duration is: $9:28 - 9:11 = 17 \, \text{minutes}.$

Final Answer: The train journey is 17 minutes long.

Would you like more details or have additional questions? Here are 5 related questions you might find interesting:

1. How to calculate the duration between two times?
2. What if the flight time changed—how would the answer adjust?
3. How to interpret a timetable efficiently for scheduling?
4. What are common errors people make when solving time-related problems?
5. Can we calculate for multiple time zones if the scenario was international?

Tip: Always double-check time constraints to avoid missing critical