Havent quite figured that out yet - however,If I go to the weather setting and just change the time to say 2300 and go fly, I am till in broad daylight. But if I set "Sunset" first, then change time to 2300 it certainly looks like near midnight.I will have another look and see if I can sort that out.

Olympic 2.1. In the weatherscreen,- highlight the time box- (do not type).Left click on the mouse again and you will see a marker in the box.2. Use your arrow keys on the keyboard until the marker is on the left of the number you want to change.3. Use the "delete" button and type in the wanted number.This is the way I use it and it works.Good luck.Lars Peter.:)

Thanks LarsThat does the trick nicely

Another thing I noticed: to make the sim accept the settings of the Weather screen, I have to click on "Generate" - otherwise the settings are discarded.Cristian