International Meridian Conference
On 11 October 1883, a convention of railroad executives met in Chicago and agreed to the implementation of five time zones in North America, using as a basis Greenwich Mean Time. Before the invitations to the Washington conference were sent out on December 1, the joint efforts of Abbe, Fleming and William Frederick Allen, Secretary of the US railways' "General Time Convention" and Managing Editor of the "Travellers' Official Guide to the Railways", had brought the US railway companies to an agreement which led to standard railway time being introduced at noon on 18 November 1883 across the nation. Although this was not legally established until 1918, there was thus a strong sense of "fait accompli" that preceded the Washington conference, although setting local times was not part of the remit of the conference.
Time in Chile
Chile returned to for winter time for 3 months starting in 2016. Between 2016 and 2018, this began on the second Saturday of May and ended on the second Saturday of August; from 2019 onward, it will begin on the first Saturday of April and end on the first Saturday of September.
Since 2017 a new time zone in the Magallanes and Chilean Antarctica region has been implemented, giving two different times in Continental Chile for the first time.
The winter time starts the first Saturday of April and ends on the first Saturday of September.
It has 2 hours of difference from the Continental time and changes the same days.
The official time on the mainland is now in the Magallanes and Chilean Antarctica Region is , and on Easter Island is .