Big Rock in numbers
- Coordinates
- 41.7639, -88.5470
- Elevation
- 216 m above sea level
- Population
- 1 165
- Region
- Illinois
- Country
- United States, North America
- Capital
- Washington, D.C. — 1026 km away
- Same name
- 8 more places in the world share this name
What time is it in Big Rock, Illinois, United States
Watch the current local time in Big Rock, Illinois, United States, running on the America/Chicago time zone (−5).
Big Rock, United States
Friday, 30 October 2026
UTC−5 · America/Chicago
Local time in Big Rock
UTC−5 · daylight saving time is active
Local time in Big Rock, Illinois.
The sun today
Sunrise 7:25 AM Solar noon 12:39 PM Sunset 5:53 PM Daylight 10 h 28 min Night 13 h 32 min Civil twilight 6:56 AM – 6:22 PM
Weather in Big Rock right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Big Rock and its neighbours
Postal codes
- 24603
- 37023
- 60511
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 Illinois
Other places named Big Rock
- Big Rock Arkansas, United States
- Big Rock Iowa, United States
- Big Rock Iowa, United States
- Big Rock Kentucky, United States
- Big Rock Ohio, 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
- Little Rock — 5.7 km
- Hinckley — 7.8 km
- Kaneville — 8.2 km
- Blackberry Woods — 8.6 km
- Troxel — 8.8 km
- Blackberry Acres — 10.1 km
Big Rock: clock, sun and surroundings
The sun is up at 7:25 AM in Big Rock and down again at 5:53 PM. Between those times there are 10 h 28 min of daylight.
In Little Rock and Hinckley the clock agrees with Big Rock.
Postal areas within Big Rock come to 3.
In Big Rock the time zone is America/Chicago and the offset is UTC−5. Daylight saving time used: Yes.
Questions and answers
- Can you tell me the time zone for Big Rock?
- Big Rock is in America/Chicago, with an offset of −5.
- Is daylight saving time observed at this location, Big Rock?
- Daylight saving time in Big Rock: Yes.
- What hour brings sunrise in Big Rock?
- The hour is 7:25 AM.