Right now, local time in Groton is 11:36 (EST, UTC-05:00), and today is Monday, November 2, 2026. The live clock above updates every second.
Groton ranks #140823 worldwide by population and #16195 in United States.
Time zone info
- Time zone
- America/New_York EST
- UTC offset
- UTC-05:00
- Daylight saving
- Yes, in force now ✅ — Clocks go forward by 1 hour on March 14, 2027
- Solar time
- Clocks run about 29m ahead of the sun
- ISO week
- Week 45
Sunrise, sunset & moon today
- Sunrise
- 06:22
- Sunset
- 16:39
- Day length
- 10h 17m
- Solar noon
- 11:31
- Daylight range
- 9h 03m (winter) – 15h 19m (summer)
- Moon phase
- 🌗 Last Quarter · 48% illuminated
Full sunrise & sunset timetable for Groton — golden hour, twilight and month view →
📍 Location & geography
- Coordinates
- 42.6112° N, 71.5745° W
- Hemisphere
- Northern · Western
- Elevation
- 101 m above sea level — higher than about 32% of cities with a recorded elevation
- Region
- Massachusetts
- Country
- 🇺🇸 United States
- Population
- 1,124 · #140823 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
- 42.61° S, 108.43° E
- Hemisphere
- Southern · Eastern
- What lies there
- Open ocean or remote wilderness — the nearest city we track is Augusta, Australia, 1,092 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
- 05:02
- Sunrise
- 06:21
- Dhuhr
- 11:31
- Asr
- 14:14
- Maghrib
- 16:38
- Isha
- 17:57
- Qibla direction
- 60.1° from north (ENE (60°))
Full prayer timetable for Groton — this month, 7-day forecast and Qibla →
Groton sits in the America/New_York time zone, UTC-05:00. The clocks are currently shifted forward for daylight saving time. Today brings 10h 17m of daylight, and nights are longer than days. It is one of the 17343 cities we cover in United States.
Groton sits at just 101 m above sea level. Groton's nearest major hub of the ones tracked below is Chicago, 1,322 km away; even Sydney lies some 16,198 km off. Its position on the globe is 42.61° N, 71.57° 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 | 08:36 | −3h |
| Chicago | 10:36 | −1h |
| São Paulo | 13:36 | +2h |
| London | 16:36 | +5h |
| Paris | 17:36 | +6h |
| Moscow | 19:36 | +8h |
| Dubai | 20:36 | +9h |
| Mumbai | 22:06 | +10h 30m |
| Singapore | 00:36 | +13h |
| Hong Kong | 00:36 | +13h |
| Tokyo | 01:36 | +14h |
| Sydney | 03:36 | +16h |
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 City11:36
- Los Angeles08:36
- Brooklyn11:36
- Chicago10:36
- Queens11:36
- Houston10:36
- Phoenix09:36
- Philadelphia11:36
- San Antonio10:36
- Manhattan11:36
- San Diego08:36
- The Bronx11:36
Distances from Groton
| Chicago | 1,322 km | W (272°) |
| Los Angeles | 4,126 km | W (273°) |
| London | 5,281 km | NE (53°) |
| Paris | 5,550 km | NE (56°) |
| Moscow | 7,221 km | NE (36°) |
| São Paulo | 7,789 km | SSE (156°) |
| Dubai | 10,713 km | NE (47°) |
| Tokyo | 10,748 km | NNW (335°) |
| Mumbai | 12,254 km | NE (36°) |
| Hong Kong | 12,771 km | N (354°) |
| Singapore | 15,105 km | N (7°) |
| Sydney | 16,198 km | W (270°) |
Cities near Groton
- Ayer6 km · 11:36
- East Pepperell6 km · 11:36
- Pepperell6 km · 11:36
- Devens8 km · 11:36
- Shirley10 km · 11:36
- Harvard12 km · 11:36
- Dunstable10 km · 11:36
- Littleton Common11 km · 11:36
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/New_York IANA time zone (UTC-05:00), currently abbreviated EST.
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 06:22 and sunset at 16:39 today, giving 10h 17m of daylight.
What moon phase is visible over Groton tonight?
The moon phase over Groton tonight is 🌗 Last Quarter with 48.3% illumination.
What is the antipode of Groton?
The antipode of Groton — the point on the exact opposite side of the Earth — lies at 42.61° S, 108.43° E. It falls in the ocean or a remote wilderness — the nearest city we track is Augusta, Australia, roughly 1,092 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 101 m above sea level, higher than roughly 32% 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 29 minutes ahead of local solar time, because the official time zone does not exactly match the Sun's position.