CLT — Chile Standard Time
View CLT time details, UTC-4 offset, DST status, and tools to compare Chile Standard Time with other time zones.
How to Convert CLT to Other Time Zones
Open the CLT converter page: Go to https://www.xconvert.com/time-converter/clt-time-zone to open the visual comparison grid with Chile Standard Time (CLT) preloaded at UTC-4. This page is useful when you need to line up working hours in Chile with teams abroad, such as scheduling a supplier call from Santiago with partners in New York, São Paulo, or London.
Add comparison cities: Click + Add City and search for cities you want to compare against CLT, such as New York for finance and client meetings, London for international trading and legal coordination, or Miami for travel, logistics, and regional headquarters activity. Adding multiple rows lets you see immediately whether Chilean business hours overlap with North American or European workdays on the same date.
Select a time range on the grid: Click Select if needed, then drag across the CLT row to highlight a meeting window, such as 9:00 AM to 11:00 AM CLT. That range equals 1:00 PM to 3:00 PM UTC, and on a standard date it appears as 9:00 AM to 11:00 AM in New York during EDT or 2:00 PM to 4:00 PM in London during BST, helping you confirm whether a Chile morning meeting fits overseas office hours.
Export and share the result: After selecting the purple time block, use the export options shown on the page: ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is especially useful for remote teams, because an ICS file or Google Calendar link will place the meeting into each participant’s local time automatically, reducing errors when Chile switches between standard time and daylight time during the year.
About Chile Standard Time (CLT)
CLT stands for Chile Standard Time. Its standard offset is UTC-4, which means local time in CLT is 4 hours behind Coordinated Universal Time; when it is 12:00 UTC, it is 8:00 AM CLT.
Chile Standard Time is used in mainland Chile during the standard-time part of the year. The principal population center associated with this time zone is Santiago, the national capital and largest metropolitan area, with a metro population of roughly 7 million people, and CLT also applies across other major mainland urban areas such as Valparaíso, Viña del Mar, Concepción, Antofagasta, Temuco, and La Serena when standard time is in effect.
Because CLT is UTC-4, it shares the same raw offset as several other abbreviations at different times of year, including AST, BOT, PYT, and sometimes EDT depending on season. However, the abbreviation itself is specific to Chile’s standard-time observance, so users should compare the actual city and date rather than relying only on the offset; for example, 9:00 AM CLT is 9:00 AM in parts of the Caribbean on AST, but not necessarily the same as Eastern Time in North America on a winter date.
In practical scheduling, CLT matters for industries tied to Chile’s economy, including mining, agriculture, wine exports, shipping, retail, and regional corporate services. A call set for 10:00 AM CLT aligns with 2:00 PM UTC, which can be convenient for midday coordination with Europe but may fall early for the U.S. West Coast, where it would be 7:00 AM PDT on a date when Pacific Daylight Time is active.
CLT and Daylight Saving Time
Chile Standard Time is the standard time used by mainland Chile at UTC-4, but Chile also observes daylight saving time for much of the year. When daylight saving time is active, mainland Chile switches from CLT (UTC-4) to CLST, Chile Summer Time (UTC-3), moving clocks forward by 1 hour.
For the current year, 2026, mainland Chile is on CLT from Saturday, April 4, 2026, when clocks move back by one hour at midnight local time, and it switches to CLST (UTC-3) on Saturday, September 5, 2026, when clocks move forward by one hour at midnight local time. This means a time like 11:00 AM CLT in July becomes 11:00 AM CLST in October, but the UTC relationship changes from 3:00 PM UTC in standard time to 2:00 PM UTC in daylight time.
This seasonal change affects business coordination significantly. For example, during CLT (UTC-4), Santiago is 1 hour ahead of New York when New York is on EST, but during periods when Chile is on CLST (UTC-3) and New York is on EDT (UTC-4), Santiago becomes 1 hour ahead of New York in the opposite seasonal pattern, so recurring meetings should always be checked by exact date rather than by memory.
Travel planning is also affected by the shift. Flights through Santiago International Airport (SCL), onward connections within Chile, and calendar invites for multinational teams can all be off by an hour if someone assumes Chile stays on UTC-4 year-round, which it does not on the mainland.
Frequently Asked Questions
What does CLT stand for?
CLT stands for Chile Standard Time. It is the standard-time designation used for mainland Chile when the country is not observing its summer daylight saving schedule, and its exact offset is UTC-4.
Is CLT the same as GMT?
No, CLT is not the same as GMT. GMT is UTC+0, while CLT is UTC-4, so CLT is 4 hours behind GMT; when it is 12:00 PM GMT, it is 8:00 AM CLT.
Which cities use CLT?
CLT is associated with mainland Chile during standard time, including major cities such as Santiago, Valparaíso, Viña del Mar, Concepción, Antofagasta, Temuco, and La Serena. Santiago is the most important reference city because it is Chile’s capital, largest metro area, and the center for government, finance, aviation, and many international business operations.
What is the UTC offset for CLT?
The UTC offset for CLT is UTC-4. In other words, Chile Standard Time is 4 hours behind UTC, so 6:00 PM UTC converts to 2:00 PM CLT on the same calendar day.
When does CLT change?
CLT changes when mainland Chile enters or leaves daylight saving time. In 2026, Chile uses CLT (UTC-4) beginning April 4, 2026, and then switches to CLST (UTC-3) on September 5, 2026, so the exact conversion depends on the date you are checking.
Is CLT used all year in Chile?
No, CLT is not used all year on mainland Chile. It is the standard-time portion of the annual cycle, and for the warmer season Chile changes to CLST (Chile Summer Time), UTC-3, which shifts local time one hour ahead.
Is CLT the same as Eastern Time in the United States?
Not consistently. CLT shares a UTC-4 offset with Eastern Daylight Time (EDT) during part of the year, so there are dates when Santiago and New York show the same clock time, but they follow different daylight saving calendars and abbreviations, so they are not the same time zone system.
How far is CLT behind UTC?
CLT is 4 hours behind UTC. That means if a global meeting is listed at 15:00 UTC, the corresponding local time in CLT is 11:00 AM.
Why does the CLT conversion change depending on the month?
The conversion changes because Chile observes daylight saving time, moving between CLT (UTC-4) and CLST (UTC-3) on mainland dates set by the Chilean government. If you schedule recurring calls with Chilean teams in mining, shipping, or export businesses, the overlap with cities like New York, London, or Madrid can shift by one hour in April and September.