London to New York Time Difference: Understanding the Time Gap Between Two Global Cities
London and New York are two of the most important cities in the world, with rich cultures, flourishing economies, and diverse populations. However, they are located on different continents in different time zones, which makes understanding the London to New York time difference important for travel and communication between the cities. London is generally five hours ahead of New York, except for when daylight savings time makes it four hours. This generally means that when it is 9:00 am in New York, it is already 2:00 pm in London.
The time difference between London and New York is very important to communicate or do business across the Atlantic. For example, if someone in New York wants to have a conference call with someone in London with the five hour time difference, the most convenient time tends to be between 2:00 pm and 6:00 pm in London, which corresponds to 9:00 am and 1:00 pm in New York.
The time difference from New York to London is also important to understand from a travel perspective as it impacts the number of daylight hours by the time you land when traveling between the two cities.
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London to New York Time Difference for Work
London and New York, two cities that are very prominent financial centers globally, are located in different continents, countries and time zones. London is 5 hours ahead of New York, which means that when it is 9:00 am in New York, it is already 2:00 pm in London.
From a work perspective, if someone in New York wants to schedule a conference call with someone in London, they will need to take the time difference into account. The most convenient time to accommodate all parties tends to be between 2:00 pm and 6:00 pm in London, which will be a usual working time of between 9:00 am and 1:00 pm in New York.
It is also important to consider the impact of Daylight Saving Time as it is called in the US, and British Summer Time as it is called in the UK, on the time difference between New York and London. Daylight saving time is typically observed from the second Sunday in March to the first Sunday in November in the United States and British Summer Time is observed from the last Sunday in March to the last Sunday in October in the United Kingdom. This difference in daylight saving time/British summer time between the two countries reduces the time difference between the two cities by one hour for a few weeks every year, when London is 4 hours ahead of New York. The 4 hour time difference applies from the second Sunday to the last Sunday in March, and last Sunday in October to the first Sunday in November every year.
Time Difference from London to New York for Travel
From a travel perspective, flying from New York to London means you lose 5 hours by the time you land in London. This makes overnight flights very popular while traveling from New York to London as you get a full day in New York before you take a late evening or night flight to London, which means you land in London the following morning, which gives you a full day there as well.
The opposite applies when you fly from London to New York as you gain five hours by the time you land in New York. So if you take an evening flight from London to New York, you land in New York in the evening as well given the 5 hours that are gained while flying.
Calculating the Time Difference London to New York
The London to New York time difference is 5 hours and easy to calculate using the table from the first Sunday in November to the second Sunday in March, and the last Sunday in March to the last Sunday in October every year.
| New York Time | London Time |
| 12:00 AM | 5:00 AM |
| 1:00 AM | 6:00 AM |
| 2:00 AM | 7:00 AM |
| 3:00 AM | 8:00 AM |
| 4:00 AM | 9:00 AM |
| 5:00 AM | 10:00 AM |
| 6:00 AM | 11:00 AM |
| 7:00 AM | 12:00 PM |
| 8:00 AM | 1:00 PM |
| 9:00 AM | 2:00 PM |
| 10:00 AM | 3:00 PM |
| 11:00 AM | 4:00 PM |
| 12:00 PM | 5:00 PM |
| 1:00 PM | 6:00 PM |
| 2:00 PM | 7:00 PM |
| 3:00 PM | 8:00 PM |
| 4:00 PM | 9:00 PM |
| 5:00 PM | 10:00 PM |
| 6:00 PM | 11:00 PM |
| 7:00 PM | 12:00 AM |
| 8:00 PM | 1:00 AM |
| 9:00 PM | 2:00 AM |
| 10:00 PM | 3:00 AM |
| 11:00 PM | 4:00 AM |
Calculating the Time Difference New York to London during Daylight Savings Time Mismatch with British Summer Time
The London to New York time difference for the few weeks when the Daylight Savings Time and British Summer Time do not align can be calculated using the table below from the second Sunday to the last Sunday in March, and last Sunday in October to the first Sunday in November every year.
| New York Time | London Time |
| 12:00 AM | 4:00 AM |
| 1:00 AM | 5:00 AM |
| 2:00 AM | 6:00 AM |
| 3:00 AM | 7:00 AM |
| 4:00 AM | 8:00 AM |
| 5:00 AM | 9:00 AM |
| 6:00 AM | 10:00 AM |
| 7:00 AM | 11:00 AM |
| 8:00 AM | 12:00 PM |
| 9:00 AM | 1:00 PM |
| 10:00 AM | 2:00 PM |
| 11:00 AM | 3:00 PM |
| 12:00 PM | 4:00 PM |
| 1:00 PM | 5:00 PM |
| 2:00 PM | 6:00 PM |
| 3:00 PM | 7:00 PM |
| 4:00 PM | 8:00 PM |
| 5:00 PM | 9:00 PM |
| 6:00 PM | 10:00 PM |
| 7:00 PM | 11:00 PM |
| 8:00 PM | 12:00 AM |
| 9:00 PM | 1:00 AM |
| 10:00 PM | 2:00 AM |
| 11:00 PM | 3:00 AM |
Closing Thoughts
New York and London are both important global cities, and travel between and communication with the other is a very common occurrence. London is generally 5 hours ahead of New York, and it is important to keep this time difference in mind to optimize for both communication and travel between the two cities. However, for a few weeks every year this time difference reduces to 4 hours from the second Sunday to the last Sunday in March, and last Sunday in October to the first Sunday in November every year. Keeping this London to New York time difference in mind allows for efficient scheduling and travel between the two cities.
