Williamson County in numbers
- Coordinates
- 37.7303, -88.9299
- Region
- Illinois
- Country
- United States, North America
- Capital
- Washington, D.C. — 1045 km away
- Same name
- 2 more places in the world share this name
What time is it in Williamson County, Illinois, United States
Learn the current time in Williamson County, Illinois, United States, a place in the America/Chicago time zone (−5).
Williamson County, United States
Thursday, 22 October 2026
UTC−5 · America/Chicago
Local time in Williamson County
UTC−5 · daylight saving time is active
What the clock shows right now in Williamson County.
The sun today
Sunrise 7:12 AM Solar noon 12:41 PM Sunset 6:11 PM Daylight 10 h 59 min Night 13 h 01 min Civil twilight 6:45 AM – 6:37 PM
Weather in Williamson County right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Williamson County and its neighbours
Postal codes
- 62959 Marion — 0.5 km away
- 62933 Energy — 9.6 km away
- 62951 Johnston City — 10.5 km away
- 62948 Herrin — 11.4 km away
- 62922 Creal Springs — 14.8 km away
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 Williamson County
- Williamson County Tennessee, United States
- Williamson County Texas, 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
- Marion — 0.3 km
- Marion Mobile Home Village — 2.0 km
- Kay - Lou Trailer Courts — 3.0 km
- Dog Walk — 3.2 km
- Timmons — 3.7 km
- Spillertown — 4.1 km
Williamson County: clock, sun and surroundings
Locations in Williamson County are covered by 5 postal codes.
Williamson County carries the America/Chicago zone, offset UTC−5. Whether daylight saving time is applied: Yes.
Sunrise today is 7:12 AM in Williamson County, with sunset at 6:11 PM. That works out to 10 h 59 min of light.
Set your clock for Williamson County and it will also be right in Marion and Marion Mobile Home Village.
Questions and answers
- Which time zone designation is used for Williamson County?
- The designation used for Williamson County is America/Chicago, with an offset of −5.
- Is summer time applied in Williamson County?
- Yes.
- How do I know when the sun rises in Williamson County?
- Sunrise there is at 7:12 AM.