New York City, United States · UTC-4
Convert time from New York City
New York City is in the Eastern Time timezone (EST/UTC-5 in winter, EDT/UTC-4 in summer). The US observes daylight saving, advancing clocks on the second Sunday of March.
the clock that runs the world’s money
The New York Stock Exchange opens at 9:30am Eastern Time. Everything else on Earth adjusts around that fact.
The morning at the NYSE begins before the opening bell. Pre-market trading runs from 4am. By 8am, the futures desks in Midtown are already moving. By 9:29, the floor is ready. At precisely 9:30, billions of dollars in equity change hands in the first sixty seconds of trading. That moment, repeated every business day, makes Eastern Time the most financially consequential timezone on the planet.
The mechanism is invisible to most people but structures daily life across continents. A portfolio manager in London sets her alarm for 2:30pm because she cannot leave before New York opens. A trader in Tokyo finishes his shift at 11pm during US summer because that is when New York closes. A broker in Johannesburg refuses morning meetings during the first hour of US trading. Eastern Time is not just New York’s timezone: it is the coordinating clock for the world’s largest capital markets.
This was not inevitable. When the NYSE was founded in 1792, there was no universal timekeeping. Railroads forced standardisation in the 1880s. American railroads adopted four time zones in 1883, more than three decades before federal law required it (the Standard Time Act passed in 1918), because running trains on local solar time produced scheduling chaos. New York ended up in what became Eastern Standard Time. The exchange was already there. Finance followed the infrastructure.
At 40 degrees north, New York’s seasonal light variation is genuine: nearly 15 hours of daylight at midsummer, under 9.5 hours in December. The NYSE’s hours do not change with the seasons. The opening bell is always 9:30, whether July light pours through the windows of the floor or December darkness has already settled over the Hudson. The clock that runs the world’s money does not adjust for the sun.
New York follows America/New_York in the IANA database: UTC-5 in winter (Eastern Standard Time) and UTC-4 in summer (Eastern Daylight Time), with DST transitions on the second Sunday of March and first Sunday of November.
9am in New York City is 2pm in London, one of the most practically important timezone conversions in global business.
Sources
Same time as New York City
Compare New York City with
Questions about time in New York City
- What timezone is New York City in?
- New York City is in Eastern Time (ET), using the IANA timezone
America/New_York. The standard UTC offset is UTC-5 (EST) in winter and UTC-4 (EDT) during daylight saving time. - Does New York City observe daylight saving time?
- Yes. New York City observes daylight saving time, shifting from UTC-5 (standard time) to UTC-4 in summer.
- What is the current UTC offset for New York City?
- New York City is currently at UTC-4. It is currently observing daylight saving time.
- What is the time difference between New York City and London?
- New York City is currently 5 hours behind London.
- What is the time difference between New York City and Los Angeles?
- New York City is currently 3 hours ahead of Los Angeles.
- What is the time difference between New York City and Tokyo?
- New York City is currently 13 hours behind Tokyo. Tokyo does not observe daylight saving time, so this gap changes by 1 hour when New York City transitions to/from DST.
- What is the IANA timezone name for New York City?
- The IANA timezone database identifier for New York City is
America/New_York. Use this string in programming languages and APIs: JavaScript (`new Intl.DateTimeFormat('en-US', { timeZone: 'America/New_York' })`), Python (`pytz.timezone('America/New_York')`), or any IANA-compatible library.
Frequently Asked Questions
What timezone is New York City in?
New York City uses the IANA timezone America/New_York. The UTC offset is UTC-5 in winter (standard time) and UTC-4 during daylight saving time (summer).
Does New York City observe daylight saving time?
Yes. New York City observes daylight saving time, shifting from UTC-5 (standard time) to UTC-4 in summer.
What is the current UTC offset for New York City?
New York City is currently at UTC-4. It is currently observing daylight saving time.
What is the time difference between New York City and London?
New York City is currently 5 hours behind London.