On Mon, Mar 6, 2017 at 10:42 AM, Colin Smale <colin.sm...@xs4all.nl> wrote:
> On 2017-03-06 17:21, Paul Johnson wrote: > > On Mar 5, 2017 18:30, "Frederik Ramm" <frede...@remote.org> wrote: > > Hi, > > I would like to start a discussion about the mapping of time zones. > > > > What do you think? > > > I'm generally opposed to mapping timezones in OpenStreetMap unless the > tzdata maintainers are 100% on board. Since timezones are a royal pain to > keep track of, often changing 100+ times a year, on as little as a few > hours notice in some cases. > > > Do you mean territories switch to another timezone 100+ times a year, or > that the details of the timezone (DST dates etc) change 100+ times a year? > If it's the latter, it won't be a problem for OSM if we only store the TZ > name. Looking at the archives of the tz-announce mailing list, there are > only 1-2 actual changes per month which would affect OSM. I think there are > more changes to admin boundaries than to timezones. > No, the maddening number of changes unrelated to DST. Computerphile rather accurately describes the situation <https://www.youtube.com/watch?v=-5wpm-gesOY>. I only have to deal with it tertiarily in my line of work and it's still caused a lot of problems for us as a company. > In what way would the tzdata maintainers need to be "on board"? > Considering that group most closely tracks this, it would be best if we worked very closely together on getting this data right. A lack of close collaboration would rather render having this data in OpenStreetMap outdated very quickly.
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