Best Time to Call the UK from the USA
UK business hours end around the time the US east coast starts its day, so the best window is early in the UK afternoon.
Our US sister siteLive time in every US zoneCheck the current time in each US zone on USATime.now before you dial.Open USATime.now →East coast
New York is usually five hours behind the UK. A 14:00 UK call is 09:00 in New York. The best window is 14:00 to 17:00 UK time, 09:00 to 12:00 in New York.
West coast
Los Angeles is usually eight hours behind. The UK has only a short window: 17:00 UK is 09:00 in Los Angeles, so many calls are held early in the UK evening.
Watch the changeover weeks
In spring and autumn the UK and the US change clocks on different weekends, so for a few weeks the gap is one hour smaller. Use our converter to check the exact gap for a given date.
Frequently asked questions
What is the time difference between the UK and New York?
Normally five hours, with New York behind. In the weeks between the UK and US clock changes it is four hours.
Clock change guides
- What Is Daylight Saving Time (DST)? A Plain-English GuideWhat daylight saving time is, how it works in the UK, Europe and the US, why it exists, its history, who uses it and the argument over scrapping it.
- Why Do the Clocks Go Back in October? The Real ReasonThe clocks go back in autumn to return the UK to GMT, so winter mornings are lighter. The history, the rule, what time it happens and what changes for you.
- When Do the Clocks Go Forward Again After Going Back?When the UK clocks go forward again after the autumn change, how long the UK stays on GMT, when evenings get lighter and how to remember to reset your clocks.