United States
Time now in Groton
Monday, 24 August 2026
Sunrise 06:02Sunset 07:40Time zone UTC −4
Time zone
America/New_York
UTC offset
UTC −4
Daylight saving
In effect now
Population
437
Sunrise
06:02
Sunset
07:40
Day length
13h 38m
Coordinates
44.21, -72.20
Time difference from Groton
Hours ahead (right) or behind (left) Groton right now.
Groton on the map
About the time in Groton
If you are coordinating from another country, the shortcut is the working window: a normal Groton 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.
Groton runs on America/New_York, which puts the city UTC −4 from Coordinated Universal Time right now. The clock at the top of this page is not copied from your device: it is anchored to our reference timestamp and re-rendered every second against the IANA time zone database, so it stays right even when a laptop or phone has quietly drifted.
Groton is on daylight saving time at the moment, which is why the offset reads UTC −4 instead of its winter value. Clocks go back on 1 November 2026, and anything scheduled across that date shifts by an hour.
Frequently asked questions about time in Groton
- Does Groton change its clocks for daylight saving?
- Yes, and it is in effect now. Clocks change again on 1 November 2026.
- What are normal business hours in Groton in UTC?
- A 09:00–17:00 working day in Groton runs from 13:00–21:00 UTC today.
- What time is it in Groton right now?
- The live clock above shows the current time in Groton, updating every second from America/New_York (UTC −4).
- Which time zone is Groton in?
- Groton uses America/New_York, currently UTC −4.
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