vidisteryesterday I ended up reading the time zone database mailing list archives. I'm so thankful that there are people who do that kinda work, so we don't have to. It's a very special kind of rabbit hole.
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.