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
"Summer time in Chile", also known as "daylight saving time (DST) in Chile" was used in Chile from 1968 to 2014 & 2016-present. The time zone "Chile Summer Time (CLST)" was used on the mainland with the offset and "Easter Island Summer Time (EASST)" was used on Easter Island with the offset . In mainland Chile, time was changed at on a Saturday, i.e. at 0:00 on the following Sunday. In Easter Island, time was changed at 20:00 on a Saturday. In 2015, the time offset used in this time zone eventually became the only time zone in Chile.