Local Mean Time (LMT) is not local time
Local Mean Time (LMT) is not the same as "local time". The two are completely different things.
Everybody on the operational side of aviation should know this, but incredibly, I see pilots - even a Chief Pilot - using the term "LMT" when what they really mean is just plain old local time.
Even more incredible is the fact that ERSA seems to think the two are the same. On page INTRO-6 of ERSA, it says:
4.1 Time throughout this document is normally shown in UTC. Where local time is intended it will be followed by the abbreviation LMT (Local Mean Time).
There should be an "official" abbreviation for "local time". Something like "LT" would be just fine. Incredibly, there is no abbreviation for "local time" - which is probably why people are using "LMT".
Doh.