There is no official decree published yet, but it has been reported by official Chilean government Twitter accounts that Magallanes región (https://en.wikipedia.org/wiki/Magallanes_Region) will keep DST (UTC -3) all year round

Sources:

- https://twitter.com/presidencia_cl/status/805398903604576256 (from Press Office of the Presidency of Chile, "President Michelle Bachelet signs the decree that establishes a single timezone for Magallanes región")

- https://twitter.com/AndresReboll/status/805398964690386944 (from Minister of Energy, "after a participative (sic) process and thoughtful investigation, decided to establish a single timezone (*summer*) for Magallanes)

- http://www.soychile.cl/Santiago/Sociedad/2016/12/04/433428/Bachelet-firmo-el-decreto-para-establecer-un-horario-unico-para-la-Region-de-Magallanes.aspx

As a reminder, Chile has (since 2016) DST from August to May following year

The biggest city in the region is Punta Arenas, with over 123 thousand inhabitants. The whole population for Magallanes region is 164.661 people

As soon as the decree gets published, I'll share it here

Juan Correa Poblete
PS Labs (http://www.pslabs.cl)