Real Navigation with SH4

Tests of GMT times versus "Base Time" as the clock is called in SH4 shows, that sun sets and raises look to be just as usable as in SH3 even down to minutes.

The only problem that remains are WHAT TIME ZONE ARE BASE TIME ??? and how does it change over time. I know that it does not change when you save the game (im keeping a logbook and times match whenever i go back into a new saved game)


Below an example:

Game date - 22 november 1942 - located on E 144 deg 50 / N 26 deg 50

I started the stopwatch as the game clock changed minutes, so to have seconds available.

in 3D the sun SET was

Lower Limb - 19:15:00 @ 247 deg True

Center sun - 19:29:10 @ 248 deg True

Upper Limb - 19:40:15 @ 250 deg True


From Almanac data (Starcalc) the real GMT sun SET should be 17:05:00 @ 247 deg True

Difference (to center sun) is + 2 hours 14 minutes or - 16 hours and 36 minutes


3d measurement of Polaris were 310 deg True at 31 deg up from horizon at game Base time 19:57:00

The submarine were parked the same spot the whole time.


Now can anyone tell me what timezone the BaseTime is???

or if this corrosponds with my position lat/lng ?