Best time to call United States (+1)
The US spans six time zones — a 9 AM call in New York lands at 6 AM in Los Angeles. Knowing the best time to call the United States on +1 keeps you inside business hours coast to coast.
Six zones, one easy view.
See the live gap between a global reference city and any US zone at a glance — Eastern to Pacific, no calculator needed.
The United States against the world's hubs.
Compare live US time against London, Dubai and Hong Kong so your call never lands at midnight Eastern.
Understanding the time difference between the United States and United States
Time zone differences across other major countries
Why timing matters for calls to the US.
Hit the Eastern morning window and your answer rate doubles. Miss it and you're routed straight to voicemail.
The best windows to reach Americans.
Four factors that decide when a US prospect actually picks up — across Eastern, Central, Mountain and Pacific.
United States runs at -05:00
The zone is America/New_York. 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 United States.
Clocks change here
United States observes daylight saving, shifting to -04:00 in its summer. A window that works in January moves by an hour later in the year, so re-check before scheduling a recurring call.
Shared hours with 3 of 5 markets
Callers in New York, Los Angeles, London share part of the working day with United States. 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 United States from those cities means someone is working outside normal hours — worth saying so when you book the call.
How to call the United States using the +1 code.
Four simple steps for every call into the US — dial it right across any of the six time zones.
Number anatomy
Dial exit code
Press + on mobile or 00 from most landlines. This opens an international line.
Enter +1
United States's international code. Every call to United States must start with +1.
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.
Jump to any country's best-time-to-call guide. Search by name, ISO or dial prefix.
Reach American customers in their window, on the right network.
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When your working day overlaps United States
Callers in New York, Los Angeles and London share part of the working day with United States. There is no shared working window with Mumbai and Sydney.
| Calling from | United States is | Call at (your time) | Which is (their time) |
|---|---|---|---|
| New York | same time | 9:00 AM – 5:00 PM | 9:00 AM – 5:00 PM |
| Los Angeles | 3h ahead | 9:00 AM – 2:00 PM | 12:00 PM – 5:00 PM |
| London | 5h behind | 2:00 PM – 5:00 PM | 9:00 AM – 12:00 PM |
| Mumbai | 10h 30m behind | No shared working hours — you would need to call outside 9am-5pm | |
| Sydney | 16h 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 United States’s standard-time offset of -05:00. United States observes daylight saving, so during its summer the offset moves to -04:00 and each window shifts by an hour.