Current Time in Port Jefferson, United States
United States · EDT
Port Jefferson Daylight TimeGMT -04Tue, Jul 21
12AM3AM6AM9AM12PM3PM6PM9PM
EST automatically adjusted to EDT time zone, that is in use
UTC · UTC
Coordinated Universal TimeGMT +00Wed, Jul 22
12AM3AM6AM9AM12PM3PM6PM9PM
Time zone in Port Jefferson, United States
Port Jefferson, United States uses the America/New_York time zone. Its standard-time UTC offset is UTC-5, and during daylight saving time the offset is UTC-4. In January the local offset is UTC-5; in July it is UTC-4.
Port Jefferson, United States: population 7,842 · coordinates 40.94649°, -73.06927°.
Daylight saving time in Port Jefferson (2026)
- On Sunday, March 8, 2026, clocks go forward 1 hour (UTC-5 → UTC-4).
- On Sunday, November 1, 2026, clocks go back 1 hour (UTC-4 → UTC-5).
Time difference between Port Jefferson and major cities
Differences change with the seasons because daylight saving schedules differ by region — both January and July are shown. The last column shows the local time elsewhere when it is 9:00 AM in Port Jefferson in January.
| City | In January | In July | 9:00 AM in Port Jefferson = |
|---|---|---|---|
| London | 5 hours behind | 5 hours behind | 2:00 PM |
| Tokyo | 14 hours behind | 13 hours behind | 11:00 PM |
| Sydney | 16 hours behind | 14 hours behind | 1:00 AM (next day) |
| Dubai | 9 hours behind | 8 hours behind | 6:00 PM |