Chatham in numbers
- Coordinates
- 41.7411, -87.6125
- Elevation
- 180 m above sea level
- Population
- 31 392
- Region
- Illinois
- Country
- United States, North America
- Capital
- Washington, D.C. — 950 km away
- Same name
- 29 more places in the world share this name
Right now in Chatham, Illinois, United States the local time is the one shown here, in the America/Chicago zone (−6).
Chatham, United States
Saturday, 14 November 2026
UTC−6 · America/Chicago
Local time in Chatham
UTC−6 · no daylight saving time
Local time in Chatham, Illinois.
Sunrise 6:40 AM Solar noon 11:36 AM Sunset 4:33 PM Daylight 9 h 53 min Night 14 h 07 min Civil twilight 6:10 AM – 5:02 PM
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
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.
Daylight arrives in Chatham at 6:40 AM and departs at 4:33 PM. It lasts 9 h 53 min today.
Chatham keeps the same time as its neighbours Avalon Highlands and Avalon Park.
The number of postal codes covering Chatham is 9.
Chatham keeps the America/Chicago zone, which is UTC−6. Whether summer time is observed: No.