CIST — Cayman Islands Standard Time
See what CIST means, its UTC-5 offset, whether it observes DST, and how to compare or convert it with other time zones.
How to Convert CIST to Other Time Zones
Open the CIST converter page: Visit https://www.xconvert.com/time-converter/cist-time-zone to load the visual comparison grid with Cayman Islands Standard Time (UTC-5) as the reference row. This page is useful when you need to line up working hours in the Cayman Islands with teams in places like New York, London, or Bogotá for finance, legal services, tourism operations, or remote support.
Add comparison cities with the “+ Add City” button: Click “+ Add City” and search for cities you actually coordinate with, such as New York for banking and US client calls, London for fund administration and legal work, or Toronto for travel and business coordination. Because the Cayman Islands are a major offshore financial center and a Caribbean travel destination, these comparisons are especially practical for scheduling investor updates, compliance meetings, or resort bookings.
Drag across the grid to select a meeting window: Use Select mode, then drag across the CIST row to highlight a time range in purple, such as 9:00 AM to 11:00 AM CIST. That selection shows the exact corresponding times in each added city—for example, 9:00 AM in CIST is also 10:00 AM in New York during US Eastern Daylight Time, but 9:00 AM in New York during US Eastern Standard Time, which helps you avoid mistakes during seasonal clock changes even though CIST itself does not observe daylight saving time.
Export the selected time for sharing: After selecting a range, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is useful when sending a confirmed cross-border meeting to a distributed team, because the calendar export preserves each participant’s local time automatically and reduces confusion for recurring calls involving the Cayman Islands.
About Cayman Islands Standard Time (CIST)
CIST stands for Cayman Islands Standard Time. Its exact offset is UTC-5:00, meaning local time in this zone is 5 hours behind Coordinated Universal Time (UTC) at all times of the year.
Cayman Islands Standard Time is used in the Cayman Islands, a British Overseas Territory in the western Caribbean. The territory’s principal population centers include George Town on Grand Cayman, along with communities on Cayman Brac and Little Cayman. The Cayman Islands had an estimated population of roughly 87,000 in recent official estimates, with most residents and business activity concentrated on Grand Cayman.
Because CIST stays fixed at UTC-5 year-round, it aligns seasonally with different North American clocks depending on the month. In the Northern Hemisphere winter, CIST matches US and Canadian Eastern Standard Time (EST); in the summer, it is one hour behind Eastern Daylight Time (EDT). That distinction matters for industries that regularly work with the Cayman Islands, including investment funds, banking, insurance, legal services, accounting, and tourism.
CIST shares its UTC-5 offset with several other abbreviations, including ACT, CDT, COT, CST, CT, EASST, ECT, EST, ET, PET, and R, but those labels do not all refer to the same region or the same daylight saving rules. For scheduling, the offset may match while the abbreviation can still be ambiguous, so using the city or territory name—such as George Town, Cayman Islands—is the safest option.
CIST and Daylight Saving Time
CIST does not observe Daylight Saving Time. The offset remains UTC-5:00 throughout the entire year, and it does not switch to a summer time abbreviation.
For the current year, 2026, there are no DST transition dates for Cayman Islands Standard Time. While nearby business partners in the United States and Canada typically changed to daylight saving time on March 8, 2026, and are scheduled to return to standard time on November 1, 2026, the Cayman Islands stay on UTC-5 continuously.
This creates a seasonal shift in business coordination. For example, when New York is on EST in January, George Town and New York show the same clock time; when New York moves to EDT in July, the Cayman Islands become 1 hour behind New York. If it is 9:00 AM CIST, it is 10:00 AM in New York during EDT, which is important for market openings, investor calls, and travel itineraries.
Frequently Asked Questions
What does CIST stand for?
CIST stands for Cayman Islands Standard Time. It is the standard civil time used in the Cayman Islands and remains fixed at UTC-5:00 all year, without any daylight saving adjustment.
Is CIST the same as GMT?
No, CIST is not the same as GMT. Greenwich Mean Time (GMT) is UTC+0, while Cayman Islands Standard Time is UTC-5, so CIST is 5 hours behind GMT. If it is 12:00 noon GMT, it is 7:00 AM in CIST.
Which cities use CIST?
The main urban area associated with CIST is George Town, the capital of the Cayman Islands, located on Grand Cayman. The same time standard also applies across the territory, including Cayman Brac and Little Cayman, even though the abbreviation is tied to the territory rather than a long list of international cities.
What is the UTC offset for CIST?
The UTC offset for CIST is UTC-5:00. This means you subtract 5 hours from UTC to get local Cayman Islands time; for example, 18:00 UTC converts to 1:00 PM CIST.
When does CIST change?
CIST does not change during the year because the Cayman Islands do not observe daylight saving time. In 2026, there are no spring or autumn clock changes, so the offset stays at UTC-5 from January through December.
Is CIST the same as Eastern Time in the United States?
CIST is only the same as US Eastern Time during the part of the year when the eastern United States is on Eastern Standard Time (EST). When the US switches to Eastern Daylight Time (EDT) from March 8, 2026, to November 1, 2026, CIST becomes 1 hour behind cities like New York and Miami.
Which countries or regions use Cayman Islands Standard Time?
Cayman Islands Standard Time is used by the Cayman Islands, a British Overseas Territory in the Caribbean. It is not a broad multi-country standard; it is specifically associated with this territory and its islands, especially Grand Cayman, where most of the population and financial activity are based.
How far is CIST behind UTC?
CIST is 5 hours behind UTC. A quick conversion example is that 3:00 PM UTC equals 10:00 AM CIST, which is helpful when confirming meeting times with Europe, where many financial and legal counterparties operate several hours ahead of the Cayman Islands.