CLST meaning in Time ?

Answer: What is Chile Summer Time mean?

Time in Chile is divided into three time zones. Most of Continental Chile uses the time offset UTC−04:00 in winter time and UTC−03:00 in summer time, while the Magallanes and Chilean Antarctica region uses the time offset UTC-03:00 the whole year. Additionally, Easter Island uses the time offset UTC−06:00 in winter time and UTC−05:00 in summer time

Until 2015, Continental Chile used the time offset UTC−04:00 and Easter Island used UTC−06:00 for standard time, with daylight saving time roughly between October and March every year. In January 2015, the Chilean government announced that the entire country would keep the time offset used during daylight saving time permanently. However, the annual time change was reinstated in 2016 after feedback from the public about an increase in truancy during the winter months, complaints about older computers and other electronic devices not using the right time zone, and fruit growers reporting a 15% loss in productivity.

Starting in 2016, Chile returned to UTC−04:00 for winter time for 3 months. Between 2016 and 2018, this began on the second Sunday of May and ended on the second Sunday of August; from 2019 onward, it will start on the first Sunday of April and end on the first Sunday 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.

reference

Full Form	Category
Center for Life Science Technologies	Academic & Science
CellStar Corporation	Business
Center for Leadership and Strategic Thinking	Community
Centre for Language and Speech Technology	Computing
Centre for Linguistic Science and Technology	Computing
Chile Summer Time	Time