@IGD:
1) The Startup position shown when Stellarium opens is not your correct position. Goto the Lower Left Side tool bar and click on the "Wrench"
the configuration window. Once it opens, click on "Scripts" icon. When it opens, click on sh4.ssc script and press the run button at the bottom.
If this is exactly what you're doing and getting those results, then you'll need to look at the sh4.ssc script file to see what's written there. The sh4.ssc script file is located in C:\Stellarium\scripts\ directory. Copy and paste it here so we can look at it.
The SH4toStellarium10.ssc.py script in Python is what is writing to the sh4.ssc script in Stellarium to call up the proper date/time/position of your game.
2) Base Time is the Local Time at the Naval Base your mission started from, i.e., Hawaii, that would put you in Time Zone K (-)10 hrs. or 6:48 base time = Local time on 11 NOV 43. 6:48K time = 10 Nov 43 20:48Z (GMT)
You headed West and crossed the IDL (International Date Line)(Represented by the Diagonal line across the chart below) and now in the waters off the Solomen Is.
Physically Crossing the IDL East to West you lose one day (-1) so the GMT Date would now be
10 NOV 43, Local time would be 10:48W in the vicinity of the Solomens.
As promised, here is USN's GMT chart. Copy it and make it any size your heart desires. (Click on it to see a larger pic)
The Sun travels 15° each hour, Therefore each time zone degree is in the exact middle of each time zone and has 7.5° on each side. The Navigator aboard ships is in charge of making sure all clocks (set to local time) and chronometers (are set to GMT). It's something to be concerned with as your navigation depends on it.
