Right now, local time in Big Rock is 18:12 (CST, UTC-06:00), and today is Monday, November 2, 2026. The live clock above updates every second.
Big Rock ranks #138693 worldwide by population and #15951 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 21m ahead of the sun
- ISO week
- Week 45
Sunrise, sunset & moon today
- Sunrise
- 06:28
- Sunset
- 16:49
- Day length
- 10h 21m
- Solar noon
- 11:39
- Daylight range
- 9h 08m (winter) – 15h 13m (summer)
- Moon phase
- 🌗 Last Quarter · 45% illuminated
Full sunrise & sunset timetable for Big Rock — golden hour, twilight and month view →
📍 Location & geography
- Coordinates
- 41.7639° N, 88.5470° W
- Hemisphere
- Northern · Western
- Elevation
- 216 m above sea level — higher than about 54% of cities with a recorded elevation
- Region
- Illinois
- Country
- 🇺🇸 United States
- Population
- 1,165 · #138693 worldwide
🌍 Antipode — the opposite side of the Earth
Dig straight down from Big Rock through the centre of the Earth and you surface on the far side of the planet, at the antipode.
- Antipode coordinates
- 41.76° S, 91.45° E
- Hemisphere
- Southern · Eastern
- What lies there
- Open ocean or remote wilderness — the nearest city we track is Port-aux-Français, French Southern Territories, 1,847 km away
- Through the Earth
- ≈ 12,742 km in a straight line (≈ 20,015 km along the surface)
🕌 Prayer times in Big Rock today ISNA
- Fajr
- 05:10
- Sunrise
- 06:28
- Dhuhr
- 11:39
- Asr
- 14:23
- Maghrib
- 16:47
- Isha
- 18:05
- Qibla direction
- 48.0° from north (NE (48°))
Full prayer timetable for Big Rock — this month, 7-day forecast and Qibla →
Big Rock sits in the America/Chicago time zone, UTC-06:00. The clocks are currently shifted forward for daylight saving time. Today brings 10h 21m of daylight, and nights are longer than days. It is one of the 17343 cities we cover in United States.
Big Rock sits at just 216 m above sea level. Big Rock's nearest major hub of the ones tracked below is Chicago, 77 km away; even Singapore lies some 15,062 km off. Its position on the globe is 41.76° N, 88.55° 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 | 16:12 | −2h |
| Chicago | 18:12 | same time |
| São Paulo | 21:12 | +3h |
| London | 00:12 | +6h |
| Paris | 01:12 | +7h |
| Moscow | 03:12 | +9h |
| Dubai | 04:12 | +10h |
| Mumbai | 05:42 | +11h 30m |
| Singapore | 08:12 | +14h |
| Hong Kong | 08:12 | +14h |
| Tokyo | 09:12 | +15h |
| Sydney | 11:12 | +17h |
Best time to call Big Rock
Standard business hours (9:00 – 17:00) in major hubs, expressed in Big Rock local time:
Cities sharing Big Rock's time zone
Other cities in United States
- New York City19:12
- Los Angeles16:12
- Brooklyn19:12
- Chicago18:12
- Queens19:12
- Houston18:12
- Phoenix17:12
- Philadelphia19:12
- San Antonio18:12
- Manhattan19:12
- San Diego16:12
- The Bronx19:12
Distances from Big Rock
| Chicago | 77 km | E (80°) |
| Los Angeles | 2,727 km | W (261°) |
| London | 6,417 km | NE (47°) |
| Paris | 6,716 km | NE (49°) |
| Moscow | 8,047 km | NNE (28°) |
| São Paulo | 8,446 km | SE (141°) |
| Tokyo | 10,103 km | NW (323°) |
| Dubai | 11,686 km | NNE (34°) |
| Hong Kong | 12,515 km | NNW (337°) |
| Mumbai | 12,991 km | NNE (20°) |
| Sydney | 14,799 km | W (259°) |
| Singapore | 15,062 km | NNW (342°) |
Cities near Big Rock
- Hinckley8 km · 18:12
- Plano11 km · 18:12
- Sugar Grove9 km · 18:12
- Prestbury11 km · 18:12
- Sandwich15 km · 18:12
- Elburn16 km · 18:12
- Maple Park17 km · 18:12
- Yorkville16 km · 18:12
FAQ
What time is it in Big Rock right now?
The live clock at the top of this page shows the current local time in Big Rock (United States), updated every second. It is currently week 45.
What time zone is Big Rock in?
Big Rock runs on the America/Chicago IANA time zone (UTC-06:00), currently abbreviated CST.
Does Big Rock 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 Big Rock today?
Big Rock sees sunrise at 06:28 and sunset at 16:49 today, giving 10h 21m of daylight.
What moon phase is visible over Big Rock tonight?
The moon phase over Big Rock tonight is 🌗 Last Quarter with 44.9% illumination.
What is the antipode of Big Rock?
The antipode of Big Rock — the point on the exact opposite side of the Earth — lies at 41.76° S, 91.45° E. It falls in the ocean or a remote wilderness — the nearest city we track is Port-aux-Français, French Southern Territories, roughly 1,847 km away. The straight-line distance through the Earth is about 12,742 km.
How high above sea level is Big Rock?
Big Rock sits at about 216 m above sea level, higher than roughly 54% of cities with a recorded elevation.
What is solar time in Big Rock?
Solar time follows the Sun's actual position, with solar noon when the Sun is highest in the sky. In Big Rock, clocks run about 21 minutes ahead of local solar time, because the official time zone does not exactly match the Sun's position.