Groton in numbers
- Coordinates
- 45.4475, -98.0987
- Elevation
- 397 m above sea level
- Population
- 1 508
- Region
- South Dakota
- Country
- United States, North America
- Capital
- Washington, D.C. — 1875 km away
- Same name
- 6 more places in the world share this name
What time is it in Groton, South Dakota, United States
You can see the current local time of Groton, South Dakota, United States on this page, in the America/Chicago zone (−5).
Groton, United States
Saturday, 31 October 2026
UTC−5 · America/Chicago
Local time in Groton
UTC−5 · daylight saving time is active
What the clock shows right now in Groton.
The sun today
Sunrise 8:11 AM Solar noon 1:17 PM Sunset 6:23 PM Daylight 10 h 11 min Night 13 h 49 min Civil twilight 7:41 AM – 6:54 PM
Weather in Groton right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Groton and its neighbours
Postal codes
- 01450
- 01470
- 01471
- 05046
- 06340
- 06349
- 13073
- 57445
Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.
Largest cities in South Dakota
- Sioux Falls 171 544
- Rapid City 73 569
- Aberdeen 28 102
- Brookings 23 657
- Watertown 22 073
- Mitchell 15 669
Other places named Groton
- Groton Connecticut, United States
- Groton New York, United States
- Groton Massachusetts, United States
- Groton New Hampshire, United States
- Groton Vermont, United States
Same time zone — America/Chicago
- Chicago United States
- Houston United States
- San Antonio United States
- Dallas United States
- Fort Worth United States
- Austin United States
Nearby places
About the time in Groton
The sun climbs above Groton at 8:11 AM and dips below at 6:23 PM. Between them sit 10 h 11 min of daylight.
Groton and nearby James and Ferney are never an hour apart.
8 distinct postal codes apply to Groton.
The name of the time zone in Groton is America/Chicago, and it runs UTC−5. Daylight saving time: Yes.
Questions and answers
- Which time zone entry corresponds to Groton?
- The entry corresponding to Groton is America/Chicago, with an offset of −5.
- Is there a daylight saving adjustment to the time in Groton?
- Yes.
- When does light leave Groton?
- Light leaves at 6:23 PM.