United States
Time now in Port Jefferson
Monday, 24 August 2026
Sunrise 06:55Sunset 08:23Time zone UTC −4
Time zone
America/New_York
UTC offset
UTC −4
Daylight saving
In effect now
Population
359
Sunrise
06:55
Sunset
08:23
Day length
13h 28m
Coordinates
40.33, -84.09
Time difference from Port Jefferson
Hours ahead (right) or behind (left) Port Jefferson right now.
Port Jefferson on the map
About the time in Port Jefferson
If you are coordinating from another country, the shortcut is the working window: a normal Port Jefferson day of 09:00–17:00 falls between 13:00–21:00 UTC. Convert your own hours into UTC once and you can tell at a glance whether someone there is likely to be at their desk.
Around 359 people live in Port Jefferson, and all of them keep the same civil time, so the reading above applies to the whole urban area — not just the city centre.
The zone identifier America/New_York is the value you want in code, calendars and travel systems. Abbreviations change with the season, but America/New_York keeps pointing at New York time whatever the date, which is why every timestamp on this page is built from it.
Frequently asked questions about time in Port Jefferson
- What time is it in Port Jefferson right now?
- The live clock above shows the current time in Port Jefferson, updating every second from America/New_York (UTC −4).
- When do the sun rise and set in Port Jefferson today?
- Sunrise is at 06:55 and sunset at 08:23, giving 13h 28m of daylight.
- Does Port Jefferson change its clocks for daylight saving?
- Yes, and it is in effect now. Clocks change again on 1 November 2026.
- Which time zone is Port Jefferson in?
- Port Jefferson uses America/New_York, currently UTC −4.
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