What is the ISO week number in Stony Brook?

TimeDials shows the current ISO week number for Stony Brook in real time. ISO week numbers follow the ISO 8601 standard, where week 1 is the week containing the first Thursday of the year.

Does Stony Brook observe daylight saving time (DST)?

Yes, Stony Brook observes daylight saving time. The next clock change is on 2026-11-01 (clocks move back to GMT-5).

Time in Stony Brook, New York, United States — Local Time & Date

Live

--:--:--

Current local time in 🇺🇸 Stony Brook, New York, United States.

EST/EDT UTC-04:00

Relative to You

Detecting your timezone…

Relative to UTC

-4 hours behind

Noon here = 16:00 UTC

09:00 here = 13:00 UTC

12:00 here = 16:00 UTC

17:00 here = 21:00 UTC

ISO Week

11 Odd Week

Sun

07:07

18:38

Today

Morning rush in Stony Brook. Commuters fill the streets, cafés are buzzing. The current offset is UTC-04:00.

Daylight Saving Time

Last Clock Change

2026-03-08

Clocks moved forward to GMT-4

Next Clock Change

2026-11-01

Clocks will move back to GMT-5

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Quick Facts

Country	🇺🇸United States
State / Region	New York
Timezone	EST/EDT
UTC Offset	UTC-04:00
DST	Yes — daylight saving time observed
Population	13,740
Elevation	30 m
Sunrise	07:07
Sunset	18:38
Coordinates	40.93°N, -73.14°E

Map

Map data © OpenStreetMap contributors

Time Difference to Major Cities

City	Difference	Local Time
Los Angeles	-3h	--:--
London	+4h	--:--
Paris	+5h	--:--
Dubai	+8h	--:--
Mumbai	+9h 30m	--:--
Singapore	+12h	--:--
Tokyo	+13h	--:--
Sydney	+15h	--:--
Sao Paulo	+1h	--:--
Cairo	+6h	--:--
Shanghai	+12h	--:--

Frequently Asked Questions

What are the business hours in Stony Brook?

Standard business hours in Stony Brook are 09:00–17:00 local time (EST/EDT). Check the live clock above to see the current local time. Use our Time Zone Planner to find the best meeting time across cities.

What is the UTC offset for Stony Brook?

Stony Brook is currently at UTC-04:00. The timezone identifier is EST/EDT. When it is noon in Stony Brook, it is 16:00 UTC. You can embed a live Stony Brook clock on your website.

What ISO week number is it in Stony Brook?

It is currently ISO week 11 (odd week) in Stony Brook. ISO week numbers follow the ISO 8601 standard, where week 1 is the week containing the first Thursday of the year. Learn more about ISO week numbers.

Does Stony Brook observe daylight saving time?

Yes, Stony Brook observes daylight saving time (DST). The most recent change was on 2026-03-08, when clocks moved forward to GMT-4. The next change is on 2026-11-01, when clocks will move back to GMT-5.