Use APKPure App
Get V06 One old version APK for Android
2x2 Aviation Chronometer Widget with day / night display
A simple 2x2 Aviation Chronometer Widget (as in "you have to place it on your screen to see it" ;o) ).
Toggle day and night display by tapping it.
Live Wallpaper Version is online, too, look for 'V06' in the market. More advanced functions will be available soon.
Enjoy.