UTC Offset
UTC-04:00
Current time in Stony Brook, United States
Clocks shift twice a year — UTC-05:00 in winter, UTC-04:00 in summer.
Current time in Stony Brook, United States
04:39 21
IANA time zone
America/New_York
Daylight saving
DST in effect
EST / EDT
Next DST change
November 1
backward -1h
Quick answer
The current local time in Stony Brook, United States is 04:39 (EDT), which is UTC-04:00.
Stony Brook is in United States, located at 40.926, -73.141.
The current time zone for Stony Brook is EDT, whose offset is UTC-04:00 from UTC. The IANA identifier is America/New_York.
The next daylight saving transition is November 1, 2026, when clocks move backward by 1 hour.
Timezone in Stony Brook
Eastern Standard Time (EST)
IANA time zone:
America/New_York During winter
EST
Eastern Standard Time
UTC-05:00
Currently active
EDT
Eastern Daylight Time
UTC-04:00
Daylight in Stony Brook today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 06m
Stony Brook, United States
- Country
- United States
- ISO code
- US
- Coordinates
- 40.9256° N, 73.1409° W
- IANA zone
- America/New_York
- Population
- 13,740
- Elevation
- 27 m
Your local time Detecting your timezone…
Stony Brook on the map · time zone
Stony Brook, United States
- Local time04:39
- UTC offsetUTC-04:00
- Time zoneAmerica/New_York
- StatusDaylight saving
- Coordinates
- 40.93°, -73.14°
World clock
Compared with Stony Brook
Daylight saving time in Stony Brook
Clocks shift twice a year — UTC-05:00 in winter, UTC-04:00 in summer.
Next DST change November 1, 2026
Direction backward
Amount 1h
DST schedule — recent & upcoming years
Spring-forward and fall-back dates in Stony Brook.
- 2025DST start (spring forward)Mar 9, 2025,DST end (fall back)Nov 2, 2025,
- 2026DST start (spring forward)Mar 8, 2026,DST end (fall back)Nov 1, 2026,
- 2027DST start (spring forward)Mar 14, 2027,DST end (fall back)Nov 7, 2027,
- 2028DST start (spring forward)Mar 12, 2028,DST end (fall back)Nov 5, 2028,
| Year | DST start (spring forward) | DST end (fall back) |
|---|---|---|
| 2025 | Mar 9, 2025, | Nov 2, 2025, |
| 2026 | Mar 8, 2026, | Nov 1, 2026, |
| 2027 | Mar 14, 2027, | Nov 7, 2027, |
| 2028 | Mar 12, 2028, | Nov 5, 2028, |
Hour-by-hour conversion
When it's the given hour in Stony Brook, here are the local times elsewhere.
| Stony Brook | New York | Mexico City | São Paulo | London | Paris | Berlin | Dubai | Mumbai |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 00:00 | 22:00 -1 | 01:00 | 05:00 | 06:00 | 06:00 | 08:00 | 09:30 |
| 01:00 | 01:00 | 23:00 -1 | 02:00 | 06:00 | 07:00 | 07:00 | 09:00 | 10:30 |
| 02:00 | 02:00 | 00:00 | 03:00 | 07:00 | 08:00 | 08:00 | 10:00 | 11:30 |
| 03:00 | 03:00 | 01:00 | 04:00 | 08:00 | 09:00 | 09:00 | 11:00 | 12:30 |
| 04:00 | 04:00 | 02:00 | 05:00 | 09:00 | 10:00 | 10:00 | 12:00 | 13:30 |
| 05:00 | 05:00 | 03:00 | 06:00 | 10:00 | 11:00 | 11:00 | 13:00 | 14:30 |
| 06:00 | 06:00 | 04:00 | 07:00 | 11:00 | 12:00 | 12:00 | 14:00 | 15:30 |
| 07:00 | 07:00 | 05:00 | 08:00 | 12:00 | 13:00 | 13:00 | 15:00 | 16:30 |
| 08:00 | 08:00 | 06:00 | 09:00 | 13:00 | 14:00 | 14:00 | 16:00 | 17:30 |
| 09:00 | 09:00 | 07:00 | 10:00 | 14:00 | 15:00 | 15:00 | 17:00 | 18:30 |
| 10:00 | 10:00 | 08:00 | 11:00 | 15:00 | 16:00 | 16:00 | 18:00 | 19:30 |
| 11:00 | 11:00 | 09:00 | 12:00 | 16:00 | 17:00 | 17:00 | 19:00 | 20:30 |
| 12:00 | 12:00 | 10:00 | 13:00 | 17:00 | 18:00 | 18:00 | 20:00 | 21:30 |
| 13:00 | 13:00 | 11:00 | 14:00 | 18:00 | 19:00 | 19:00 | 21:00 | 22:30 |
| 14:00 | 14:00 | 12:00 | 15:00 | 19:00 | 20:00 | 20:00 | 22:00 | 23:30 |
| 15:00 | 15:00 | 13:00 | 16:00 | 20:00 | 21:00 | 21:00 | 23:00 | 00:30 +1 |
| 16:00 | 16:00 | 14:00 | 17:00 | 21:00 | 22:00 | 22:00 | 00:00 +1 | 01:30 +1 |
| 17:00 | 17:00 | 15:00 | 18:00 | 22:00 | 23:00 | 23:00 | 01:00 +1 | 02:30 +1 |
| 18:00 | 18:00 | 16:00 | 19:00 | 23:00 | 00:00 +1 | 00:00 +1 | 02:00 +1 | 03:30 +1 |
| 19:00 | 19:00 | 17:00 | 20:00 | 00:00 +1 | 01:00 +1 | 01:00 +1 | 03:00 +1 | 04:30 +1 |
| 20:00 | 20:00 | 18:00 | 21:00 | 01:00 +1 | 02:00 +1 | 02:00 +1 | 04:00 +1 | 05:30 +1 |
| 21:00 | 21:00 | 19:00 | 22:00 | 02:00 +1 | 03:00 +1 | 03:00 +1 | 05:00 +1 | 06:30 +1 |
| 22:00 | 22:00 | 20:00 | 23:00 | 03:00 +1 | 04:00 +1 | 04:00 +1 | 06:00 +1 | 07:30 +1 |
| 23:00 | 23:00 | 21:00 | 00:00 +1 | 04:00 +1 | 05:00 +1 | 05:00 +1 | 07:00 +1 | 08:30 +1 |
Frequently Asked Questions
The current local time in Stony Brook, United States is 04:39 (EDT). Stony Brook uses the America/New_York time zone, which is UTC-04:00.
Stony Brook uses EST (UTC-05:00) in winter and switches to EDT (UTC-04:00) during daylight saving time. The IANA identifier is America/New_York.
Yes. The next daylight saving transition in Stony Brook is on November 1, 2026. Clocks will move backward by 1 hour.
The IANA / Olson time zone database identifier for Stony Brook is America/New_York. This is the identifier used by operating systems, programming languages, and APIs to look up the correct local time.
It is currently AM in Stony Brook. The local time is 04:39 (EDT).
Stony Brook is UTC-05:00 from UTC during standard time and UTC-04:00 during daylight saving time. It is currently UTC-04:00.
The next daylight saving transition in Stony Brook is on November 1, 2026. Clocks move backward by 1 hour at 01:00 local time.
Stony Brook is currently the same time as New York.