"
Timing is Everything", its been said, but, no where more important than when used with Navigation.
Alright...
Here's two pics which may shed a little light on our problem.
1st pic is of 6.9.1939 Uboat posit AP 54° N, 008° E. Zone Description (A -1)
Note that the upper time is called "LOCAL TIME" (06:43)..and the lower time in the white box (05:43) is not labeled. I presume everyone thought the time in the white background box was UT (GMT). Right?
Here have a look...
...Now...
Using StarCalc and a real life navigation program, "Navigator" to determine SR at my location, check out the UT times compared to the Times in zone Alpha -1:
This shows me that the time designated "Local Time" in the Sim is one (1) hour off, and the time everyone thought was UT is also aflicted with that 1 hour discrepency.
Time ...forgive the pun...for an adjustment.
Edit: The only thing correct about the two times in the first pic is that there is a one hour difference between UT and Local time at my geo coordinates. So, the time in the lower white box is in fact the real LOCAL TIME, I must then resort to my "Local Time to GMT conversion chart", as I've always done.
Same ole, same ole...
...anyway...here's how my SR unfolded:
Using Sun Almanac that came with RealNav
Interpolate:
60-N
50-N There are 10° difference I'm about 54°N 4/10. There are 17 min. difference between the SR times for the two Latitudes.
4/10 x 17 = 0
48, subtracted from the SR time for 50N 5:21 - 0:6:48 = 5:14:11.
SR occurred at 05:43:06 (local) - 5:14:11 (local) = 0:28:55 / 4 = 7° 13'.
Middle of my time zone (15° E) - 7° 13' = 7° 47' E (my current longitude)