If you leave UK at 9am what time will arrive JFK New York?

To calculate the arrival time at JFK New York, we need to consider the time difference between the United Kingdom (UK) and New York City (NYC), as well as the flight duration.

The time difference between London, UK, and New York City, USA, during standard time (not Daylight Saving Time) is 5 hours. This means that when it's 9am in London, it's 4am in New York City.

The flight duration from London to New York City is typically around 7-8 hours. Taking the longest estimate, let's say the flight takes 8 hours.

Adding the flight duration of 8 hours to the departure time of 4am in New York City, we get 12pm noon.

Therefore, if you leave the UK at 9am, you would arrive at JFK New York at approximately 12pm noon, assuming a direct flight and no significant delays.