Night time calculations

[melias31]

I know this has been asked before. But I thought I'd ask again. I would love to see a way to automatically calculate night time flying. I know not everyone would like it. But I do my log book a month at a time by importing from my airline's website and all my night time flying is a guess anyway. A way to automatically calculate this would be awesome. If this feature could be added that would be awesome. It could even be off by default as to not mess up people who don't want it.