What is the current UTC offset for America/Havana?

America/Havana is currently at UTC-04:00 (GMT-4). The page revalidates weekly, but live clocks on this page tick from the IANA zone in real time.

Does America/Havana observe daylight saving time in 2027?

Yes. America/Havana has 1 scheduled transition in the next 12 months. The first is November 7, 2027 (UTC-04:00 → UTC-05:00, -1h). Anchor saved timestamps to the IANA zone, not to a fixed UTC offset, so they survive the change automatically.

Which cities use America/Havana?

America/Havana is the canonical clock for cities including Havana, Santiago de Cuba, Holguín, Camagüey. The page lists 4 indexable cities in this zone after locale and crawl-safety filters.

What abbreviations does America/Havana use?

America/Havana resolves to CST year-round in the next 12 months.

Why does Cuba use America/Havana?

Cuba is mapped to America/Havana as one of its IANA zones in the country-zone catalog. The IANA zone records each jurisdiction's historical offset and DST rule changes; America/Havana stores the rules used by Cuba (ISO CU).

IANA timezone

America/Havana.

CSTUTC-04:00Observing DST

America/Havana is the IANA timezone for Cuba, currently at UTC-04:00 (CST). It observes daylight saving time, so the offset changes on the scheduled transition dates each year. The zone covers 4 cities listed below, with live clocks updating every second.

Offset, DST behavior, and city coverage are refreshed from the live timezone dataset during the page revalidation window.

Current time in CST

--:--:--

America/Havana · UTC-04:00

All timezones in Cuba →View CST abbreviation →

Abbreviation

CST

UTC Offset

UTC-04:00

DST Status

Observing DST

Country

Cuba

Timezone planning depth

What America/Havana is useful for

A timezone page should do more than define an offset. These notes connect the zone to city clocks, DST behavior, converters, and adjacent country planning pages.

Zone identity

America/Havana is rendered as CST at UTC-04:00 for Cuba. The IANA zone ID is the stable key; the abbreviation is only the short display label.

DST behavior

America/Havana has 1 scheduled offset transition in the next 12 months. Next transition: November 7, 2027 (UTC-04:00 → UTC-05:00, -1h). Cumulative offset movement across the window is +1h. Use the IANA zone ID rather than a fixed UTC offset when scheduling across these dates.

City coverage

4 indexable cities sit in this zone after locale and crawl-safety filters, with Havana, Santiago de Cuba, Holguín, and Camagüey among the examples shown.

Conversion handoff

The fastest jumps from CST are the curated converter pairs to GMT, CET, IST, JST, and AEST.

Adjacent planning context

The most useful next steps from this timezone page are holiday calendars, airport-country planning, and city clocks. Those links keep the zone page connected to real user tasks rather than stopping at an offset definition.

Single-abbreviation behavior

America/Havana resolves to a single abbreviation, GMT-4, in the next 12 months. That makes the abbreviation usable as a short display label, but the IANA zone is still the canonical key for storage and conversion math.

Offset stability

America/Havana spends about 357 days at UTC-04:00 across the forward 12-month window, which makes it the dominant offset for most of the year. The remaining time is split across the other offsets listed in the year-of-DST card.

Peer zones at the same offset

Other IANA zones currently aligned at UTC-04:00 include America/Manaus, America/St_Kitts, America/Blanc-Sablon, America/Montserrat, and America/Barbados. Same-offset peers can drift apart later in the year if their DST rules differ, so a peer match today is not a permanent equivalence.

Country roster

America/Havana is used as the primary clock anchor for Cuba. The roster is derived from country-zone mappings, so it reflects which jurisdictions adopt this IANA zone rather than which countries happen to share its current offset.

Timezone abbreviations can be ambiguous. The IANA zone name is the canonical key used for clocks, city pages, and conversion math.

Source-change watch

When timezone policy changes

Machine-readable rule source

Exact offsets and transition rows come from the IANA Time Zone Database as exposed by the deployed runtime. IANA publishes tzdb releases when governments change civil-time rules.

Check IANA Time Zone Database

Policy-source boundary

No jurisdiction-specific policy source is attached for America/Havana. Confirm legal clock-change announcements with the relevant government or time authority before relying on future rules.

Year-round offset behavior

America/Havana across the next 12 months

The forward 12-month sweep returned 1 scheduled offset transition. Cumulative offset movement is +1h. Anchor stored timestamps to the IANA zone, not to a fixed UTC offset.

Date (local)	Local time	From	To	Gap
November 7, 2027	12:00 AM	UTC-04:00 (GMT-4)	UTC-05:00 (GMT-5)	-1h

Offset window

UTC-04:00 (GMT-4)

357 days

Offset window

UTC-05:00 (GMT-5)

8 days

Primary offset across the window: UTC-04:00 (GMT-4) for about 357 days.

Coverage reference

What America/Havana covers

Country roster

Cuba

Common abbreviations

CST

Abbreviations rotate with each DST transition — anchor calendar entries to the IANA zone, not an abbreviation.

Peer zones at UTC-04:00 right now

America/Manaus America/St_Kitts America/Blanc-Sablon America/Montserrat America/Barbados America/Port_of_Spain America/Martinique America/St_Lucia

Same-offset peers can drift apart later in the year if their DST rules differ; today's offset match is not a permanent equivalence.

Top cities in America/Havana (by population)

Havana Santiago de Cuba Holguín Camagüey

DST mismatch radar

Meetings drift when regions change their clocks on different weekends. Dates below are computed from the IANA time zone rules as of 15 Nov 2026.

Upcoming DST shifts

United States and Canada
Clocks go forward 1 hour · UTC-05:00 → UTC-04:00
Sun 14 Mar 2027
UK and European Union
Clocks go forward 1 hour · UTC+00:00 → UTC+01:00
Sun 28 Mar 2027
New Zealand
Clocks go back 1 hour · UTC+13:00 → UTC+12:00
Sun 4 Apr 2027
South-east Australia
Clocks go back 1 hour · UTC+11:00 → UTC+10:00
Sun 4 Apr 2027

Meetings at risk

New York ↔ London
- Sun 14 Mar 2027 (New York changes)5 h → 4 h
- Sun 28 Mar 2027 (London changes)4 h → 5 h
- Sun 31 Oct 2027 (London changes)5 h → 4 h
- Sun 7 Nov 2027 (New York changes)4 h → 5 h
4 h instead of 5 h for 14 days, Sun 14 Mar 2027 to Sun 28 Mar 2027.
4 h instead of 5 h for 7 days, Sun 31 Oct 2027 to Sun 7 Nov 2027.
New York ↔ Sydney
- Sun 14 Mar 2027 (New York changes)16 h → 15 h
- Sun 4 Apr 2027 (Sydney changes)15 h → 14 h
- Sun 3 Oct 2027 (Sydney changes)14 h → 15 h
- Sun 7 Nov 2027 (New York changes)15 h → 16 h
London ↔ Sydney
- Sun 28 Mar 2027 (London changes)11 h → 10 h
- Sun 4 Apr 2027 (Sydney changes)10 h → 9 h
- Sun 3 Oct 2027 (Sydney changes)9 h → 10 h
- Sun 31 Oct 2027 (London changes)10 h → 11 h

Each gap is how many hours the second city is ahead of the first.

Convert CST Time

CST→GMT CST→CET CST→IST CST→JST CST→AEST

Holidays in Cuba Airports in Cuba

Cities in CST

Camagüey Havana Holguín Santiago de Cuba

FAQ

What is the current UTC offset for America/Havana?: America/Havana is currently at UTC-04:00 (GMT-4). The page revalidates weekly, but live clocks on this page tick from the IANA zone in real time.
Does America/Havana observe daylight saving time in 2027?: Yes. America/Havana has 1 scheduled transition in the next 12 months. The first is November 7, 2027 (UTC-04:00 → UTC-05:00, -1h). Anchor saved timestamps to the IANA zone, not to a fixed UTC offset, so they survive the change automatically.
Which cities use America/Havana?: America/Havana is the canonical clock for cities including Havana, Santiago de Cuba, Holguín, Camagüey. The page lists 4 indexable cities in this zone after locale and crawl-safety filters.
What abbreviations does America/Havana use?: America/Havana resolves to CST year-round in the next 12 months.
Why does Cuba use America/Havana?: Cuba is mapped to America/Havana as one of its IANA zones in the country-zone catalog. The IANA zone records each jurisdiction's historical offset and DST rule changes; America/Havana stores the rules used by Cuba (ISO CU).

Timezone method

How we calculate this: Current offset and abbreviation come from date-fns-tz applied to the IANA zone ID (America/Havana). DST transitions are detected by sweeping the next 12 months and binary-searching the offset boundary on each day where the offset changes; the year-of-DST table is the unfiltered output of that sweep.
Data sources: IANA Time Zone Database (tzdata) for offset rules and DST policy; America/Havana resolves through the system Intl/Zone implementation in Node.js. City coverage from src/data/cities.json; country roster from src/data/countries.json; abbreviation list from src/data/abbreviations.json.
Update cadence: Page revalidates weekly (revalidate = 604800). Static rebuilds pick up tzdata version bumps when the application is redeployed; the 12-month transition window is recomputed on every revalidation pass.

Related timezone pages

Most timezone-reference visits naturally branch into a country page, abbreviation page, or converter workflow.

Time in Cuba

Open the country hub for city clocks, holidays, airports, and broader timezone context.

Timezone converter

Move from zone reference into hour-by-hour practical conversions.

Browse city pages

Use the human-readable city index if the next question is really about a city, not a zone string.