Re: [tz] [PATCH 2/3] Replace some zones with links when that doesn't lose non-LMT info.

Brian Inglis wrote:

merging zones with different Standard Time start date loses useful historical data

That's not a problem for the proposed change, because in this particular case, no useful historical data are lost. There is no real evidence that the start dates actually differed. All we have is some guesswork from Shanks. The Shanks data often contain guesswork, and the abovementioned transition dates from LMT are almost certainly part of that guesswork. The associated time zone abbreviations are also guesswork (in this case, my guesswork and not Shanks'), so they do not contain any useful historical data either.