On 2018-12-29 23:50, Paul Eggert wrote about the time change in São Tomé near 2019-01-01:
I can't find anything like that this year, so we can leave the transition time out (defaulting to 00:00 local time).
This would be quite be confusing: there would be two New Year's in a row. Obviously, the step has to be done from 02 h to 01 h (or even later). That is corroborated by the decree 34/2018, online at [https://www.legis-palop.org/download.jsp?idFile=102818]: "A hora legal do Pais, que coincide com o tempo universal coordenado, será reposta às 2 horas, no dia 1 de Janeiro de 2019." [The legal time of the country, which coincides with universal coordinated time, will be restituted at 2 o'clock on day 1 of January, 2019.] The decree has been published on 2018-12-11. Michael Deckers.