Post Oak in numbers
- Coordinates
- 39.0903, -88.9092
- Elevation
- 183 m above sea level
- Region
- Illinois
- Country
- United States, North America
- Capital
- Washington, D.C. — 1026 km away
- Same name
- 14 more places in the world share this name
What time is it in Post Oak, Illinois, United States
Local time in Post Oak, Illinois, United States is shown on this page, based on the America/Chicago time zone (−5).
Post Oak, United States
Saturday, 24 October 2026
UTC−5 · America/Chicago
Local time in Post Oak
UTC−5 · daylight saving time is active
Post Oak keeps America/Chicago clock_time.
The sun today
Sunrise 7:15 AM Solar noon 12:41 PM Sunset 6:06 PM Daylight 10 h 51 min Night 13 h 09 min Civil twilight 6:48 AM – 6:34 PM
Weather in Post Oak right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Post Oak and its neighbours
Postal codes
- 62458 Saint Elmo — 8.0 km away
- 62418 Brownstown — 11.8 km away
- 62414 Beecher City — 13.8 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 Post Oak
- Post Oak Alabama, United States
- Post Oak Arkansas, United States
- Post Oak Arkansas, United States
- Post Oak Georgia, United States
- Post Oak Missouri, 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
- Pruett — 2.8 km
- Sefton — 4.5 km
- Magnolia Corner — 4.9 km
- Wrights Corner — 5.7 km
- Saint Elmo — 8.8 km
- Howards Point (historical) — 8.9 km
Post Oak: clock, sun and surroundings
Post Oak has 3 postal codes in total.
The zone name for Post Oak is America/Chicago and the offset is UTC−5. Daylight saving time: Yes.
Today's sun rises in Post Oak at 7:15 AM, then sets at 6:06 PM. The day offers 10 h 51 min of daylight.
Same time, different place: Pruett and Sefton near Post Oak.
Questions and answers
- What time zone is assigned to Post Oak?
- Post Oak is assigned to the America/Chicago time zone, with an offset of −5.
- Is the local clock in Post Oak affected by daylight saving time?
- Yes.
- Looking for sunrise and sunset in Post Oak — what are they?
- Sunrise at 7:15 AM, sunset at 6:06 PM.