Local Mean Time- Standard Aviation terminology for a lot longer than your "Quite a few years"
Maybe. But....LMT was replaced by LST (
Local
Standard
Time) or LT (
Local
Time) as LMT was in vogue when sundials were used. The use of LMT in this thread is the first time I've seen it used in commercial aviation. Best to stick with LT, DST, GMT or UTC - at least everyone would know what these terms mean.
Now, back to the whingeing and whining from the Pacific Intruders.