When to call Antigua and Barbuda (+1-268)
Antigua runs on Atlantic Standard Time — UTC−4 year-round. Tourism and financial contacts in Saint John's are best reached 9 AM–5 PM AST.
AST (UTC−4), at a glance.
Antigua and Barbuda observes Atlantic Standard Time all year with no daylight saving adjustment. Saint John's and English Harbour share one time zone.
Antigua against the world's hubs.
Antigua is 4 h behind London, in sync with Halifax, and 1 h ahead of New York. Miami and Boston callers overlap almost entirely with Antigua's business hours.
Understanding the time difference between the United States and Antigua and Barbuda
Time zone differences across other major countries
Why timing matters for calls to Antigua.
Resort and marina contacts in Antigua work structured hours. Catching the 9–11 AM window avoids lunch gaps and end-of-day wrap-up and gets decisions made faster.
The best windows to reach Antigua.
9 AM–12 PM AST for business; 2 PM–4 PM for follow-ups. Fridays slow after 3 PM in the Eastern Caribbean — front-load important calls.
Antigua and Barbuda runs at -04:00
The zone is America/Antigua. Every window on this page is worked out from that offset rather than a rule of thumb, so the times shown are the ones that actually apply to Antigua and Barbuda.
No daylight saving
Antigua and Barbuda stays on -04:00 all year. The windows below only move when the caller's own country changes its clocks, not when Antigua and Barbuda does.
Shared hours with 3 of 5 markets
Callers in New York, Los Angeles, London share part of the working day with Antigua and Barbuda. The table above gives the exact intersection for each.
Where the gap is too wide
There is no 9-to-5 overlap with Mumbai, Sydney. Calling Antigua and Barbuda from those cities means someone is working outside normal hours — worth saying so when you book the call.
How to call Antigua and Barbuda using the +1-268 code.
Dial +1-268 then the seven-digit local number. Ringflow's NANP routing connects to Saint John's on Eastern Caribbean DID infrastructure.
Number anatomy
Dial exit code
Press + on mobile or 00 from most landlines. This opens an international line.
Enter +1-268
Antigua and Barbuda's international code. Every call to Antigua and Barbuda must start with +1-268.
Area prefix
Add the local area or mobile network code — always drop any leading zero used for domestic calls.
Full number
Dial the remaining subscriber digits. Your number is now correctly formatted for international routing.
Best time to call — every country.
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When your working day overlaps Antigua and Barbuda
Callers in New York, Los Angeles and London share part of the working day with Antigua and Barbuda. There is no shared working window with Mumbai and Sydney.
| Şuradan aranıyor: | Antigua and Barbuda is | Call at (your time) | Which is (their time) |
|---|---|---|---|
| New York | 1h ahead | 9:00 AM – 4:00 PM | 10:00 AM – 5:00 PM |
| Los Angeles | 4h ahead | 9:00 AM – 1:00 PM | 1:00 PM – 5:00 PM |
| London | 4h behind | 1:00 PM – 5:00 PM | 9:00 AM – 1:00 PM |
| Mumbai | 9h 30m behind | No shared working hours — you would need to call outside 9am-5pm | |
| Sydney | 15h behind | No shared working hours — you would need to call outside 9am-5pm | |
Windows are the intersection of a 9am-5pm working day in each place,
using Antigua and Barbuda'sstandard-time offset of -04:00. Antigua and Barbuda does not observe daylight saving, so these windows hold all year — though they shift when the caller's own country changes its clocks.
SSS
Calling Antigua and Barbuda, answered.
Time zone, daylight saving and dialling questions for Antigua and Barbuda (+1-268).