I'm not certain whether or not you have read my Nav book, but here is a page that may help with your question.

[attachment=262]NAV2.1.pdf[/attachment]

Thanks Bob I am making my way through your book I was looking for an explicit definition of LMT. What do you think of this:

Def LMT: Is the arc time differance between a locations current positon and its (LMT midnight postition) (i.e. at the midnight position LMT=0000 and it's anti-meridian has the sun at it's highest point)

Example: a location with a LMT of 0600 has travelled 90 degrees/6 hours from the point where it's anit meridian had the sun at it's highest point)

Cheers James

Yes, that sounds like a legitimate definition to me. The earth's rotation can serve as a clock. Every 15° of longitude difference is a time difference of one hour, which is the same as 4 minutes for each degree. Therefore each meridian has its own local time based on how many degrees it has traveled since it passed the 'midnight' position.

Good luck with your study - you are obviously a deep thinker!

Bob