Hi Paul, today we have more confirmation of the change. Aysen region will keep UTC-3 all year https://www.cnnchile.com/pais/region-de-aysen-mantendra-horario-de-verano-to... https://www.latercera.com/nacional/noticia/tras-consulta-ciudadana-region-de... https://x.com/min_interior/status/1902692504270672098 kind regards On Sat, Mar 8, 2025 at 11:55 PM Paul Eggert via tz <tz@iana.org> wrote:
Radio Santa María (Coyhaique) reported Wednesday (in Spanish)[1] of a delay in the decision whether Chile’s Aysén Region will switch from -04/-03 (with DST) to all-year -03. A government representative denied that the delay is due to Interior Minister Carolina Tohá’s resignation Tuesday to run for president, and Tohá’s replacement that day by Álvaro Elizalde.
If the Interior Ministry decides to go ahead with the change, this would invalidate current TZDB for Aysén at some future point. A plausible time for this would be April 5 at 24:00, which is short notice for people responsible for operating systems in the region. Perhaps someone with connections in Chile could suggest making any change in April 2026 rather than this year.
The attached hypothetical patch shows one way that this might play out in four weeks. I have not installed this patch into the TZDB development repository, though, as the situation is too iffy.
[1]:
https://www.radiosantamaria.cl/2025/03/05/regional-huso-horario-anunciaran-e...
-- Yonathan Dossow