Current Time in New York

Eastern Time: one zone, two names

New York's clock does something Tokyo's never does: it moves. For roughly eight months of the year, from mid-March to early November, the city runs on Eastern Daylight Time (EDT, UTC-4). For the other four months it's Eastern Standard Time (EST, UTC-5). The IANA database files both under a single identifier, America/New_York, and quietly handles the switch — which is exactly why the DST dates above are worth bookmarking if you're scheduling anything that spans the changeover.

The day of two noons

Eastern Time exists because of a scheduling crisis, not a government decree. Before November 18, 1883, every American town kept its own solar time — noon in Boston wasn't noon in Buffalo — which made railroad timetables nearly impossible to coordinate. That day, American and Canadian railroads collectively adopted four standard time zones across the continent, and clocks across the eastern seaboard were reset to a shared standard at the same instant. Newspapers called it "the day of two noons." The system was so obviously useful that it operated for 35 years on convention alone before Congress made it federal law with the Standard Time Act of 1918 — the same act that introduced daylight saving to the U.S. for the first time.

The ball that started a tradition

Six years before Standard Time existed, New York was already broadcasting the correct time to an entire city. Starting in 1877, the Western Union Telegraph Building on lower Broadway dropped a copper time ball from its tower at precisely noon every day, triggered by a telegraph signal wired in from the US Naval Observatory in Washington. Ship captains in the harbor used it to set their chronometers before heading to sea, and anyone downtown could glance up and check their pocket watch against it. When The New York Times wanted a way to draw crowds to its new headquarters for the 1907–08 New Year, it borrowed the idea directly — moving the drop from noon to midnight and from every day to once a year. The Times Square ball drop is, in effect, a 150-year-old harbor navigation tool that never stopped working.

Wall Street's clock problem

Long before Eastern Time existed, the head of Wall Street already had a fixed point of reference: the clock on Trinity Church, part of the parish's third building on the site, completed in 1846. For decades its 281-foot spire was the tallest structure in Manhattan, and its clock face was visible across most of the young financial district below. That mattered more than it might seem — in the era before standardized time signals, split-second disagreements between two traders' pocket watches could genuinely determine who was first to a deal. The Exchange eventually solved this by wiring in telegraph time signals from astronomical observatories, then later a master clock system, so every floor clock and every trader's watch could be checked against one indisputable source rather than each other.

Time differences from New York

Because both New York and many other major cities observe daylight saving — often on different calendar dates — the gap between them can shift twice a year, not just stay fixed.

Los Angeles and Chicago are the easy ones — since all three follow the identical U.S. DST schedule, the gap between them never moves. Everything overseas is the pairing worth double-checking near late March and late October.

Working hours and when to call

Most New York offices run roughly 9:00 to 17:00, Monday to Friday. Financial markets keep their own clock: the New York Stock Exchange trades 9:30 to 16:00 Eastern, and a huge amount of global business is scheduled around that window regardless of where the other party sits.

• From Europe: mid-to-late afternoon your time overlaps with New York's morning. 14:00 in London is 9:00 in New York — a comfortable, common meeting slot.
• From Tokyo or Singapore: there's almost no daytime overlap. The usual compromise is a New York morning call, which lands very late evening in East Asia.
• From Los Angeles: New York is three hours ahead, so a 9:00 New York call is 6:00 in LA — early but workable for recurring standups.
• From Sydney: New York's evening is Sydney's next-day working hours, one of the more awkward common pairings in global scheduling.

Markets and offices largely empty out around Thanksgiving (fourth Thursday in November) and the last week of December — both worth avoiding for anything time-sensitive.

Daylight through the year

At roughly 40.7° north, New York sits at a similar latitude to Madrid or Beijing, so day length swings meaningfully across the seasons — from about 9 hours 15 minutes around the December solstice to about 15 hours 5 minutes around the June solstice. Combined with the DST clock shift, this means sunrise in New York barely moves all year (it stays roughly between 5:25 and 7:20 a.m. local time), while sunset swings dramatically, from before 4:35 p.m. in December to after 8:30 p.m. in June.

How we calculate this page: the live clock, UTC offset, and DST dates above are read directly from the IANA America/New_York time zone data via your browser, not hard-coded. Sunrise, sunset, solar noon, and twilight times are computed from New York's exact coordinates (40.7128°N, 74.0060°W) using standard solar position formulas, recalculated on every page load. Moon phase is derived from the current synodic month. Airport distances use the great-circle formula from those same coordinates to each airport's published location.