Convert Chile Standard Time to Greenwich Mean Time
Instantly convert Chile Standard Time (CLT) to Greenwich Mean Time (GMT) with our free online calculator.
Chile Standard Time
01:20:54 AM
Wed, Jun 24 (CLT)
Greenwich Mean Time
05:20:54 AM
Wed, Jun 24 (GMT)
Convert a Specific Time
24-Hour Comparison
| CLT | GMT |
|---|---|
| 12:00 AM | 4:00 AM |
| 1:00 AM | 5:00 AM |
| 2:00 AM | 6:00 AM |
| 3:00 AM | 7:00 AM |
| 4:00 AM | 8:00 AM |
| 5:00 AM | 9:00 AM |
| 6:00 AM | 10:00 AM |
| 7:00 AM | 11:00 AM |
| 8:00 AM | 12:00 PM |
| 9:00 AM | 1:00 PM |
| 10:00 AM | 2:00 PM |
| 11:00 AM | 3:00 PM |
| 12:00 PM | 4:00 PM |
| 1:00 PM | 5:00 PM |
| 2:00 PM | 6:00 PM |
| 3:00 PM | 7:00 PM |
| 4:00 PM | 8:00 PM |
| 5:00 PM | 9:00 PM |
| 6:00 PM | 10:00 PM |
| 7:00 PM | 11:00 PM |
| 8:00 PM | 12:00 AM(+1d) |
| 9:00 PM | 1:00 AM(+1d) |
| 10:00 PM | 2:00 AM(+1d) |
| 11:00 PM | 3:00 AM(+1d) |
How to Convert Chile Standard Time to Greenwich Mean Time
Formula
To convert Chile Standard Time (CLT) to Greenwich Mean Time (GMT): Convert CLT to GMT
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.
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.