Right now, local time in Groton is 13:06 (CST, UTC-06:00), and today is Monday, November 2, 2026. The live clock above updates every second.
Groton ranks #124240 worldwide by population and #14216 in United States.
Time zone info
- Time zone
- America/Chicago CST
- UTC offset
- UTC-06:00
- Daylight saving
- Yes, in force now ✅ — Clocks go forward by 1 hour on March 14, 2027
- Solar time
- Clocks run about 17m behind the sun
- ISO week
- Week 45
Sunrise, sunset & moon today
- Sunrise
- 07:14
- Sunset
- 17:20
- Day length
- 10h 06m
- Solar noon
- 12:17
- Daylight range
- 8h 43m (winter) – 15h 41m (summer)
- Moon phase
- 🌗 Last Quarter · 47% illuminated
Full sunrise & sunset timetable for Groton — golden hour, twilight and month view →
📍 Location & geography
- Coordinates
- 45.4475° N, 98.0987° W
- Hemisphere
- Northern · Western
- Elevation
- 397 m above sea level — higher than about 79% of cities with a recorded elevation
- Region
- South Dakota
- Country
- 🇺🇸 United States
- Population
- 1,508 · #124240 worldwide
🌍 Antipode — the opposite side of the Earth
Dig straight down from Groton through the centre of the Earth and you surface on the far side of the planet, at the antipode.
- Antipode coordinates
- 45.45° S, 81.90° E
- Hemisphere
- Southern · Eastern
- What lies there
- Open ocean or remote wilderness — the nearest city we track is Port-aux-Français, French Southern Territories, 979 km away
- Through the Earth
- ≈ 12,742 km in a straight line (≈ 20,015 km along the surface)
🕌 Prayer times in Groton today ISNA
- Fajr
- 05:50
- Sunrise
- 07:13
- Dhuhr
- 12:17
- Asr
- 14:53
- Maghrib
- 17:18
- Isha
- 18:41
- Qibla direction
- 39.8° from north (NE (40°))
Full prayer timetable for Groton — this month, 7-day forecast and Qibla →
Groton sits in the America/Chicago time zone, UTC-06:00. The clocks are currently shifted forward for daylight saving time. Today brings 10h 06m of daylight, and nights are longer than days. It is one of the 17343 cities we cover in United States.
Groton sits at just 397 m above sea level. Groton's nearest major hub of the ones tracked below is Chicago, 930 km away; even Singapore lies some 14,382 km off. Its position on the globe is 45.45° N, 98.10° W, and the point on the exact opposite side of the Earth is described in the antipode section below.
Time difference with major cities
| Los Angeles | 11:06 | −2h |
| Chicago | 13:06 | same time |
| São Paulo | 16:06 | +3h |
| London | 19:06 | +6h |
| Paris | 20:06 | +7h |
| Moscow | 22:06 | +9h |
| Dubai | 23:06 | +10h |
| Mumbai | 00:36 | +11h 30m |
| Singapore | 03:06 | +14h |
| Hong Kong | 03:06 | +14h |
| Tokyo | 04:06 | +15h |
| Sydney | 06:06 | +17h |
Best time to call Groton
Standard business hours (9:00 – 17:00) in major hubs, expressed in Groton local time:
Cities sharing Groton's time zone
Other cities in United States
- New York City14:06
- Los Angeles11:06
- Brooklyn14:06
- Chicago13:06
- Queens14:06
- Houston13:06
- Phoenix12:06
- Philadelphia14:06
- San Antonio13:06
- Manhattan14:06
- San Diego11:06
- The Bronx14:06
Distances from Groton
| Chicago | 930 km | ESE (112°) |
| Los Angeles | 2,128 km | WSW (240°) |
| London | 6,692 km | NE (45°) |
| Paris | 7,013 km | NE (47°) |
| Moscow | 8,023 km | NNE (24°) |
| São Paulo | 9,267 km | SE (134°) |
| Tokyo | 9,292 km | NW (316°) |
| Dubai | 11,705 km | NNE (25°) |
| Hong Kong | 11,803 km | NNW (329°) |
| Mumbai | 12,789 km | N (9°) |
| Sydney | 14,131 km | WSW (257°) |
| Singapore | 14,382 km | NNW (331°) |
Cities near Groton
FAQ
What time is it in Groton right now?
The live clock at the top of this page shows the current local time in Groton (United States), updated every second. It is currently week 45.
What time zone is Groton in?
Groton runs on the America/Chicago IANA time zone (UTC-06:00), currently abbreviated CST.
Does Groton observe daylight saving time?
Yes — daylight saving time is in force right now. Clocks go forward by 1 hour on March 14, 2027.
What time is sunrise and sunset in Groton today?
Groton sees sunrise at 07:14 and sunset at 17:20 today, giving 10h 06m of daylight.
What moon phase is visible over Groton tonight?
The moon phase over Groton tonight is 🌗 Last Quarter with 47.2% illumination.
What is the antipode of Groton?
The antipode of Groton — the point on the exact opposite side of the Earth — lies at 45.45° S, 81.90° E. It falls in the ocean or a remote wilderness — the nearest city we track is Port-aux-Français, French Southern Territories, roughly 979 km away. The straight-line distance through the Earth is about 12,742 km.
How high above sea level is Groton?
Groton sits at about 397 m above sea level, higher than roughly 79% of cities with a recorded elevation.
What is solar time in Groton?
Solar time follows the Sun's actual position, with solar noon when the Sun is highest in the sky. In Groton, clocks run about 17 minutes behind local solar time, because the official time zone does not exactly match the Sun's position.