Phake Nick wrote:
The effect should be same in almost all cases, but to be literally reflect the rule in tz database probably an update might be desirable.
Thanks, this doesn't appear to change any transition times, but we should change the .zi files to reflect the South Korean DST rules better. Proposed patch attached, and installed into the development version.
2. Regarding history of Korean time, there is a Korean wiki site https://namu.wiki/w/대한민국%20표준시 that say when Korea was using GMT+8:30 as standard time, the international aviation/marine/meteorological industry in the country refused to follow and continues to use GMT+9:00 for interoperability. Did the phenomenon actually occured back then and is there any further details about it?
It's quite possible. I couldn't find any further info about it.
tz database should probably be more actively removing anything related to Shanks from the database as those information are not fact
We've been doing that as best we can. I don't know of any purposeful errors in Shanks that appear in tzdata. If there are any, we should fix them.
and thus subject to copyright claims We don't have to worry about that any more, as the copyright suit was settled on favorable terms.