Potomac in numbers
- Coordinates
- 40.3050, -87.8006
- Elevation
- 204 m above sea level
- Population
- 721
- Region
- Illinois
- Country
- United States, North America
- Capital
- Washington, D.C. — 935 km away
- Same name
- 6 more places in the world share this name
What time is it in Potomac, Illinois, United States
The current local time in Potomac, Illinois, United States is displayed here for the America/Chicago time zone (−5).
Potomac, United States
Friday, 23 October 2026
UTC−5 · America/Chicago
Local time in Potomac
UTC−5 · daylight saving time is active
Potomac keeps America/Chicago clock_time.
The sun today
Sunrise 7:12 AM Solar noon 12:37 PM Sunset 6:02 PM Daylight 10 h 50 min Night 13 h 10 min Civil twilight 6:44 AM – 6:29 PM
Weather in Potomac right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Potomac and its neighbours
Postal codes
- 20854
- 20859
- 61865
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 Potomac
- Potomac Maryland, United States
- Potomac Veracruz, Mexico
- Potomac Maryland, United States
- Potomac Montana, United States
- Potomac Virginia, 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
- Blue Grass (historical) — 6.2 km
- Jamesburg — 6.5 km
- Armstrong — 6.5 km
- Higginsville — 7.9 km
- Henning — 8.5 km
- Collison — 8.9 km
Local time details for Potomac
Potomac and its neighbours Blue Grass (historical) and Armstrong keep one clock.
3 codes are used to address mail in Potomac.
The clock in Potomac is set to America/Chicago, offset UTC−5. Daylight saving time in use: Yes.
The sun rises here at 7:12 AM and sets at 6:02 PM in Potomac today. Daylight adds up to 10 h 50 min.
Questions and answers
- What is the correct time zone for Potomac?
- The correct time zone for Potomac is America/Chicago, with an offset of −5.
- What time zone rules apply in Potomac — does the clock change for daylight saving time?
- Daylight saving time in Potomac: Yes.
- Tell me the sunset hour in Potomac.
- The sunset hour is 6:02 PM.