Hi Keith, and welcome to the forum,
First: It is best to ask questions about missions in the Missions section because that is where we look for such questions, and where others look for the answers.
When asking about a specific mission, we would appreciate the exact title because there are many missions with similar scenarios. For instance there are at least two missions taking Titanic to NY: An older mission involving an iceberg slalom, and one involving five environments.
The latter takes a minimum of 4 hours 23 minutes. If you attempt that one, I recommend reading the topic on it in the Missions section:
http://www.shipsim.com/ShipSimForum/index.php/topic,3758.0.html (http://www.shipsim.com/ShipSimForum/index.php/topic,3758.0.html)
That mission, like all others except those involving the container crane, can be saved by clicking the “Save your game “ icon in the bottom right corner of the screen—third from the right.
The best time to save is immediately after entering a new environment, as the engines are at stop.
Saving and restarting a mission can sometimes prevent your completion time from being recorded. Not all game state data is saved.
If you have any questions about Titanic 2… or any other mission, you can send me a PM.
Good luck, and have fun.
Regards,
Marty