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Convert Greenwich Mean Time to Chile Standard Time

Instantly convert Greenwich Mean Time (GMT) to Chile Standard Time (CLT) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Greenwich Mean Time

05:20:58 AM

Wed, Jun 24 (GMT)

Chile Standard Time

01:20:58 AM

Wed, Jun 24 (CLT)

CLT is -4 hours from GMT

Convert a Specific Time

GMT

24-Hour Comparison

GMTCLT
12:00 AM8:00 PM(-1d)
1:00 AM9:00 PM(-1d)
2:00 AM10:00 PM(-1d)
3:00 AM11:00 PM(-1d)
4:00 AM12:00 AM
5:00 AM1:00 AM
6:00 AM2:00 AM
7:00 AM3:00 AM
8:00 AM4:00 AM
9:00 AM5:00 AM
10:00 AM6:00 AM
11:00 AM7:00 AM
12:00 PM8:00 AM
1:00 PM9:00 AM
2:00 PM10:00 AM
3:00 PM11:00 AM
4:00 PM12:00 PM
5:00 PM1:00 PM
6:00 PM2:00 PM
7:00 PM3:00 PM
8:00 PM4:00 PM
9:00 PM5:00 PM
10:00 PM6:00 PM
11:00 PM7:00 PM

How to Convert Greenwich Mean Time to Chile Standard Time

Formula

To convert Greenwich Mean Time (GMT) to Chile Standard Time (CLT): Convert GMT to CLT

About Greenwich Mean Time (GMT)

Greenwich Mean Time (GMT, IANA: Europe/London) is the historic and current civil time of the United Kingdom (during winter), Ireland (during winter), Portugal mainland (during winter), Iceland (year-round), and most West African countries. GMT is set at UTC+0 — the time on the Prime Meridian (0° longitude) running through the Royal Observatory in Greenwich, southeast London. Established as the global time reference by the 1884 International Meridian Conference in Washington DC, GMT served as the world's primary civil-time reference from 1884 until 1972 when UTC (Coordinated Universal Time) was adopted as the new precision standard. The UK switches from GMT to British Summer Time (BST = UTC+1) at 01:00 GMT on the last Sunday of March and back to GMT at 02:00 BST on the last Sunday of October per EU Directive 2000/84/EC (UK retained this schedule after Brexit). GMT affects: London Stock Exchange (LSE) trading hours, BBC World Service broadcast time-stamps, all aviation NOTAMs and weather METARs which use UTC = GMT, and ICAO + IMO worldwide maritime/aviation coordination.

About Chile Standard Time (CLT)

Chile Standard Time (CLT, IANA: America/Santiago) is the official civil time of most of Chile, set at UTC-4:00. CLT is observed during the Southern Hemisphere winter (April to September) and Chile switches to Chile Summer Time (CLST = UTC-3:00) during the Southern Hemisphere summer (September to April) per Decreto 1.444 of 2021. Chile's DST window is opposite the Northern Hemisphere DST window because the seasons are reversed. CLT serves approximately 19 million people across Chile's 16 regions. Major cities: Santiago de Chile (5.6M city, 7M metro — capital), Valparaíso (300K), Concepción (220K), Antofagasta (390K), Temuco (290K). The Easter Island (Isla de Pascua / Rapa Nui) territory in the South Pacific uses Easter Island Standard Time (EAST = UTC-6:00) separately, switching to EASST = UTC-5:00 in summer. Magallanes region in southern Chile stays on UTC-3:00 year-round (no DST). CLT affects: Santiago Stock Exchange BCS trading, Codelco copper-mining shift coordination, and ALMA Observatory astronomical-observation scheduling in the Atacama desert.

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