I've written a couple of Lix guides, and perhaps would like to write some more, so I thought I'd index them all in one thread for easy access
How to convert between ticks and seconds: https://www.lemmingsforums.net/index.php?topic=6982.0
How the nuke/overtime system works: https://www.lemmingsforums.net/index.php?topic=7674.msg110628#msg110628