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.
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.