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 DatabaseIANA timezone
America/Nassau.
EDTUTC-04:00Observing DST
America/Nassau is the IANA timezone for Bahamas, currently at UTC-04:00 (EDT). 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 EDT
--:--:--America/Nassau · UTC-04:00
Abbreviation
EDT
UTC Offset
UTC-04:00
DST Status
Observing DST
Country
Bahamas
Timezone planning depth
What America/Nassau 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/Nassau is rendered as EDT at UTC-04:00 for Bahamas. The IANA zone ID is the stable key; the abbreviation is only the short display label.
DST behavior
America/Nassau has 1 scheduled offset transition in the next 12 months. Next transition: March 14, 2027 (UTC-05:00 → UTC-04:00, +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 Nassau, Lucaya, Freeport, and Killarney among the examples shown.
Conversion handoff
EDT has no pre-built converter pair, so a custom comparison runs through the general timezone converter instead.
Adjacent planning context
The most useful next steps from this timezone page are holiday calendars and city clocks. Those links keep the zone page connected to real user tasks rather than stopping at an offset definition.
Abbreviations across the year
America/Nassau resolves to multiple display abbreviations in the next 12 months: EDT and EST. The abbreviation rotates with the offset, which is why long-lived calendar entries should be anchored to the IANA zone instead of a saved abbreviation.
Offset stability
America/Nassau spends about 236 days at UTC-04:00 across the forward 12-month window, which makes it the longer-running of two seasonal offsets. 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/Rio_Branco, America/Winnipeg, America/Bogota, America/Atikokan, and America/Cancun. 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/Nassau is used as the primary clock anchor for Bahamas. 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
Policy-source boundary
No jurisdiction-specific policy source is attached for America/Nassau. Confirm legal clock-change announcements with the relevant government or time authority before relying on future rules.
Year-round offset behavior
America/Nassau 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 |
|---|---|---|---|---|
| March 14, 2027 | 3:00 AM | UTC-05:00 (EST) | UTC-04:00 (EDT) | +1h |
Offset window
UTC-05:00 (EST)
129 days
Offset window
UTC-04:00 (EDT)
236 days
Primary offset across the window: UTC-04:00 (EDT) for about 236 days.
Coverage reference
What America/Nassau covers
Country roster
Peer zones at UTC-05:00 right now
America/Rio_BrancoAmerica/WinnipegAmerica/BogotaAmerica/AtikokanAmerica/CancunAmerica/CaymanAmerica/JamaicaAmerica/Panama
Same-offset peers can drift apart later in the year if their DST rules differ; today's offset match is not a permanent equivalence.
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 5 Nov 2026.
Upcoming DST shifts
- United States and CanadaClocks go forward 1 hour · UTC-05:00 → UTC-04:00Sun 14 Mar 2027
- UK and European UnionClocks go forward 1 hour · UTC+00:00 → UTC+01:00Sun 28 Mar 2027
- New ZealandClocks go back 1 hour · UTC+13:00 → UTC+12:00Sun 4 Apr 2027
- South-east AustraliaClocks go back 1 hour · UTC+11:00 → UTC+10:00Sun 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.
Cities in EDT
FAQ
- What is the current UTC offset for America/Nassau?
- America/Nassau is currently at UTC-05:00 (EST). The page revalidates weekly, but live clocks on this page tick from the IANA zone in real time.
- Does America/Nassau observe daylight saving time in 2027?
- Yes. America/Nassau has 1 scheduled transition in the next 12 months. The first is March 14, 2027 (UTC-05:00 → UTC-04:00, +1h). Anchor saved timestamps to the IANA zone, not to a fixed UTC offset, so they survive the change automatically.
- Which cities use America/Nassau?
- America/Nassau is the canonical clock for cities including Nassau, Lucaya, Freeport, Killarney. The page lists 4 indexable cities in this zone after locale and crawl-safety filters.
- What abbreviations does America/Nassau use?
- America/Nassau resolves to EDT, EST across the next 12 months — the abbreviation rotates with each DST transition. Calendar entries should anchor to the IANA zone instead of an abbreviation so the right offset is used in each window.
- Why does Bahamas use America/Nassau?
- Bahamas is mapped to America/Nassau 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/Nassau stores the rules used by Bahamas (ISO BS).
Related timezone pages
Most timezone-reference visits naturally branch into a country page, abbreviation page, or converter workflow.