Dewey in numbers
- Coordinates
- 40.3189, -88.2820
- Elevation
- 223 m above sea level
- Region
- Illinois
- Country
- United States, North America
- Capital
- Washington, D.C. — 976 km away
- Same name
- 16 more places in the world share this name
Watch the current local time in Dewey, Illinois, United States, running on the America/Chicago time zone (−6).
Dewey, United States
Friday, 13 November 2026
UTC−6 · America/Chicago
Local time in Dewey
UTC−6 · no daylight saving time
What the clock shows right now in Dewey.
Sunrise 6:38 AM Solar noon 11:39 AM Sunset 4:39 PM Daylight 10 h 02 min Night 13 h 58 min Civil twilight 6:09 AM – 5:08 PM
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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.
3 postal codes divide Dewey.
Dewey adheres to America/Chicago, a UTC−6 offset. Daylight saving time observed: No.
The sun climbs above Dewey at 6:38 AM and dips below at 4:39 PM. Between them sit 10 h 02 min of daylight.
No adjustment is needed moving between Dewey, Tomlinson and Fisher.