The TZ project, which maintains the timezone database, would be a good place to find pointers. They don't actually manage that information, but pointers to "shape files" that translate map coordinates into the timezone identifier are available.
paul > On Dec 14, 2017, at 2:44 PM, Eric S. Raymond <e...@thyrsus.com> wrote: > > For a slightly higher-quality conversion, the attribution entries in > the map file should have a third field: timezone. IANA zones are > acceptable. > > This wouldn't change how commit times are stored internally, but the > Git tools use it for display in local time. > -- > <a href="http://www.catb.org/~esr/">Eric S. Raymond</a> > > My work is funded by the Internet Civil Engineering Institute: > https://icei.org > Please visit their site and donate: the civilization you save might be your > own. > >