The time in mainland Chile:

Easter Island:

Magellanes & Palmer station ( Antarctica )

From 2019, Chileans will turn the clocks back one hour at the end of Daylight Saving Time (DST) at midnight between the first Saturday night and Sunday morning of April every year.
They will then turn clocks forward again to begin DST on the first Saturday/Sunday of September.
These DST dates will remain in place until 2021
Magallanes is always 3 hours behind UTC.

* 2019 Sunday, 7 April, 00:00 - Sunday, 8 September, 00:00
* 2020 Sunday, 5 April, 00:00 - Sunday, 6 September, 00:00

Rounded figures!