Not sure I understand those numbers, is that how they appear when viewing the goal properties in the Mission Editor? Mine had the format:
Start Time 11:25:00
End Time 11:30:00
Or are you viewing them some other way?
Since the mission briefing states the missile fires at approx 11:28am and you need to observe for two minutes, those times make no sense especially given that the mission starts at 10:00am.
Here's the other thread where people were having problems and where a developer admits they knew there was a problem.
http://174.123.69.202/~subsimc/radio...ad.php?t=82267
There's at least one more thread on these forums about this problem and another over at the Sonalysts forums, but I am having problems finding the thread I found where someone from Sonalysts admitted that the problems with this mission were one of the reasons they introduced scripting for Dangerous Waters.