United States
Time now in Groton
Sunrise 06:03Sunset 07:39Time zone UTC −4
Time zone
America/New_York
UTC offset
UTC −4
Daylight saving
In effect now
Population
10,389
Sunrise
06:03
Sunset
07:39
Day length
13h 36m
Coordinates
41.33, -72.07
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.
Sunrise today lands at 06:03 and sunset at 07:39 local time, giving 13h 36m of daylight. Those figures come from the city's own coordinates (41.33, -72.07) rather than a country-wide average, so they match what you would actually see from a window in Groton.
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 Groton
- Does Groton change its clocks for daylight saving?
- Yes, and it is in effect now. Clocks change again on 1 November 2026.
- When do the sun rise and set in Groton today?
- Sunrise is at 06:03 and sunset at 07:39, giving 13h 36m of daylight.
- 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).
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