Jacksonville uses Eastern Time (ET) — UTC−5 in winter (EST) and UTC−4 in summer (EDT). The largest city by land area in the contiguous United States, Jacksonville is home to two of the US Navy's busiest installations, one of America's most important vehicle import ports, and a fast-growing financial services sector anchored on Florida's Atlantic coast.
Everything you need to know about Jacksonville's time zone, UTC offset, and Daylight Saving Time schedule.
From the first Sunday of November to the second Sunday of March, Jacksonville observes EST (UTC−5). Winter time aligns Jacksonville with New York, Miami, Atlanta, Washington DC, and the entire US Eastern Seaboard — placing it in perfect synchrony with the financial centres and federal agencies that shape much of Jacksonville's economy.
From the second Sunday of March to the first Sunday of November, Jacksonville moves to EDT (UTC−4). Florida's northeast coast enjoys some of the longest summer beach evenings in the Eastern Time Zone — Jacksonville Beach, Atlantic Beach, and Neptune Beach all benefit from EDT's extended evening light from May through September.
The official IANA time zone name for Jacksonville is America/New_York, shared with New York City, Miami, Philadelphia, Boston, Washington DC, Atlanta and all Eastern Seaboard cities. Naval Station Mayport, NAS Jacksonville, and JAXPORT all use this identifier for scheduling operations across global time zones.
Spring forward: 9 March 2025 at 02:00 → 03:00
Fall back: 2 November 2025 at 02:00 → 01:00
Spring forward: 8 March 2026 at 02:00 → 03:00
Fall back: 1 November 2026 at 02:00 → 01:00
The Port of Jacksonville (JAXPORT) is the largest vehicle import and export port in the United States, handling over 650,000 vehicles annually from manufacturers including Mercedes-Benz, BMW, Volkswagen, and Kia. Ships arriving from Bremerhaven (Germany), Nagoya (Japan) and Incheon (South Korea) cross 5–14 time zones to deliver vehicles that fan out across the US by rail and truck.
Naval Station Mayport is the third largest US Navy surface fleet base in the nation, home to destroyers, frigates and amphibious assault ships. Naval Air Station Jacksonville is the largest NAS on the East Coast. Together, these two installations make Jacksonville one of the most significant naval operational hubs in the Western Hemisphere, coordinating missions across Atlantic, Mediterranean, and Indo-Pacific time zones daily using Zulu Time (UTC).
Jacksonville is the most populous city in Florida and the largest city by land area among the contiguous 48 United States, covering approximately 874 square miles (2,264 km²) — a vast territory created by the 1968 consolidation of Jacksonville city and Duval County into a single unified government. With approximately 975,000 residents in the city proper and over 1.7 million in the greater Jacksonville metropolitan area, it is consistently ranked among the fastest-growing large cities in the United States.
Jacksonville's strategic position on the St. Johns River, just 35 km from the Atlantic coast, has shaped its identity since its founding as a crossing point in the early 19th century. Today that geographic advantage translates into one of the most important logistics and port complexes on the US East Coast. JAXPORT (the Jacksonville Port Authority) operates three marine terminals handling container cargo, bulk materials, and — most distinctively — automobiles. Jacksonville is the largest vehicle-handling port in the United States, receiving Roll-on/Roll-off (RoRo) ships from Bremerhaven, Nagoya, Ulsan (South Korea), and other global manufacturing hubs, redistributing vehicles by rail and truck across the entire eastern half of the country.
The military footprint in Jacksonville is extraordinary. Naval Station Mayport and Naval Air Station Jacksonville together employ over 27,000 active-duty military personnel, making the US Navy the single largest employer in the region. NS Mayport is the third largest surface fleet base in the US Navy, homeporting destroyers, frigates, and the USS Bataan and USS Iwo Jima amphibious assault ships. NAS Jacksonville is the largest naval air station on the East Coast, housing P-8 Poseidon maritime patrol aircraft that fly anti-submarine missions across the Atlantic and beyond.
Financial services and insurance form another cornerstone of Jacksonville's economy. Fidelity National Financial, Fidelity National Information Services (FIS), Fortegra Financial, and EverBank are all headquartered here. Deutsche Bank, Bank of America, and Merrill Lynch maintain significant operations and back-office processing centres in Jacksonville — attracted by Florida's business-friendly tax environment, Eastern Time alignment with Wall Street, and lower operating costs than New York or Atlanta.
Jacksonville's cultural and outdoor identity is shaped by its unusual geography. The city has more miles of Intracoastal Waterway than any other US city, over 22 miles of Atlantic beaches within the city limits, and the largest urban park system in the country. The PGA Tour has been headquartered in Ponte Vedra Beach, just south of Jacksonville, since 1980 — and TPC Sawgrass, home of The Players Championship, is one of the most recognisable golf courses in the world.
975,000 city / ~1.7 million metro. Largest city by land area in the contiguous US at 874 sq miles. Most populous city in Florida.
America's largest vehicle import/export port. 650,000+ vehicles annually from Bremerhaven, Nagoya, Ulsan and other global hubs. Major container and bulk cargo terminal.
Same time as New York, Miami, Atlanta. 5h behind London. 14h behind Tokyo. 6h behind Bremerhaven. 30min drive to Atlantic beaches.
Humid subtropical. Hot summers (avg. 33°C / 91°F in July), mild winters (avg. 12°C / 54°F in January). Hurricane season June–November; occasional brief cold snaps in winter.
English is primary. Spanish widely spoken. Also French, Portuguese and Arabic across military and port-worker communities from across the Atlantic basin.
+1 (US country code). Area codes: 904 (Jacksonville metro). Currency: US Dollar (USD, $). Florida has no state personal income tax.
Cities most operationally connected to Jacksonville — by JAXPORT vehicle trade, US Navy Atlantic deployments, financial services and the Eastern Seaboard. Times update live every second.
Note on DST transitions: The offsets shown above reflect the current live offset, which changes twice a year. The US, EU, Japan and South Korea change their clocks on different dates — meaning the difference between Jacksonville and Bremerhaven, Nagoya, or Ulsan can shift by 1 hour for a brief period each spring and autumn. Always verify the exact offset during DST transition periods for port logistics scheduling and naval operations coordination.
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Jacksonville's Eastern Time zone places it in perfect synchrony with Wall Street and Washington DC — critical for its financial services and federal contracting sectors — while its deep-water port connects it across 5 to 14 time zones to the German, Japanese and South Korean factories whose vehicles arrive at JAXPORT daily. The Eastern Time Zone is home to over 220 million people on the US East Coast and Canada.
TimeZoria AI uses your browser's built-in Intl API and the IANA tz database (America/New_York) to always display the correct Jacksonville time — including DST changes — without any network requests.
Cities connected to Jacksonville by JAXPORT auto trade, US Navy operations, financial services, and the Atlantic basin — check their current local time.
Common questions about Jacksonville's time zone, UTC offset, DST, and global time differences for port logistics, military operations, and finance.