HiFlyer, You were so right about the sunset.......!!
Just for info for everyone the time is based on a 24 hour clock, so to set it to say 18.00 hrs it would be 0.75 (18.00 divided by 24 = 0.75). Don't forget that this is a decimal calculation not hours and minutes, so for 18:30 hrs for example you would need to divide 18.5 by 24 = 0.77 (not 18.3 divided by 24 which would be 0.76 and give a time of 18:18 hrs!).
If you also want to set the lcd clock on the Cessna 172 (and others if they have a clock) then you can do this by changing the [initialValue][42124.0] in the relevant aircraft .tmd file. The default value is 42124 which is 11:42 hrs (don't ask me why they chose this time as it doesn't tie up with the default TOD which is 13:20hrs) and the value is the number of seconds from 12:00 midnight, so to set it to 18:00 hrs the value would be [initialValue][64800.0]
If you set the TOD to about 22:00 hrs you will get a nice moonlit scene, with not a scrap of light polution in sight. Not easy to fly VFR though, but it can be done (shame we don't have a Lysander to practice with!)
Have fun and like HiFlyer say's "Its guaranteed you will gape at how gorgeous the clouds can look as the sun sets......."
Dave (ddkeo)