Guy Harris wrote:
So if "LMT" is the time zone abbreviation for a given date/time value, whoever's doing the conversion needs to do their own calculation based on the longitude, rather than using any of the data from the tzdb.
Is that what you're saying?
Spot on ... And as I had said before - I was surprised at Paul suggesting adding LMT to the database because it's a reasonably accurate calculating rather than some guess at a random fixed value ... No need for hundreds of new 'zones' because we are back to more linear time. But in the absence of a more accurate guide, using the LMT from the centre of a 15 degree zone is the next 'phase', which I've tagged in my own mind as LMTZ. That I think was what Paul was contemplating rather than LMT itself as a default value? -- Lester Caine - G8HFL ----------------------------- Contact - http://lsces.co.uk/wiki/?page=contact L.S.Caine Electronic Services - http://lsces.co.uk EnquirySolve - http://enquirysolve.com/ Model Engineers Digital Workshop - http://medw.co.uk Rainbow Digital Media - http://rainbowdigitalmedia.co.uk