Current Time in Alton, Illinois, USA
3:04:23 PM
15:04:23
CDT (Central Daylight Time) · UTC−05:00
America/Chicago
Time zone details
Alton is observing daylight saving time in 2026
Daylight in Alton
Location facts
Place
- Country
- USA
- State
- Illinois
- County
- Madison County
- Place type
- Populated place
- Country currency
- US Dollar (USD)
Practical
- Country languages
- English, Spanish, Hawaiian, French
- Dialing code
- +1
- Population
- 27,003
- Elevation
- 150 m
Geography
- Geographic coordinates
- 38° 53' N / 90° 11' W
Convert Alton time
Compare Alton with another city or time zone
Alton follows the same clock and daylight-saving rules as Chicago
Popular conversions (current offsets)
All times shown relative to Alton local time
Clock changes in Alton
2:00 AM CDT1:00 AM CST
Clocks move back 1 hour
2026
past
Daylight saving time starts
2:00 AM CST3:00 AM CDT
Clocks move forward 1 hour
upcoming
Daylight saving time ends
2:00 AM CDT1:00 AM CST
Clocks move back 1 hour
Future clock changes, 2027–2030
Sun & Moon details
Sun
- Sunrise
- Solar noon
- Sunset
- Daylight duration
- 10 hr 50 min2 min 21 sec shorter than the previous day
Twilight
- Civil twilight
- –
- Nautical twilight
- –
- Astronomical twilight
- –
View full Sun & Moon detailsHide full Sun & Moon details
Saturday, October 24, 2026
View Alton on SavvyTime's time-zone map
Sun
- Sunrise
- Sunset
- Day length
- 10 hr 50 min2 min 21 sec shorter than the previous day
- Solar noon
- (39.2° altitude)
Civil twilight
- Dawn to dusk
- –
Additional twilight
- Nautical dawn to dusk
- –
- Astronomical dawn to dusk
- –
Moon
- Phase
- Full Moon (97% illuminated)
- Moonrise
- Moonset
- Previous principal phase
- First Quarter — Sunday, October 18, 2026 at
- Next principal phase
- Full Moon — Sunday, October 25, 2026 at
Seven-day daylight outlook
| Local date | Sunrise | Sunset | Day length | Daily change |
|---|---|---|---|---|
| 10 hr 50 min | 2 min 21 sec shorter than the previous day | |||
| 10 hr 48 min | 2 min 20 sec shorter than the previous day | |||
| 10 hr 46 min | 2 min 19 sec shorter than the previous day | |||
| 10 hr 43 min | 2 min 18 sec shorter than the previous day | |||
| 10 hr 41 min | 2 min 18 sec shorter than the previous day | |||
| 10 hr 39 min | 2 min 16 sec shorter than the previous day | |||
| 10 hr 36 min | 2 min 16 sec shorter than the previous day |
Weather forecast for Alton
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Plan around Alton
Upcoming public holidays in Illinois
- Election Day
- Veterans Day
- Thanksgiving Day
Nearby scheduled airports for Alton, Illinois, USA
St. Louis Lambert International AirportSTLLarge airport · Serves St Louis22.5 km southwest
Source: OurAirports record · STL / KSTL
About 22.5 km (14.0 mi) southwest of Alton
Scheduled airline service in source data
Scott AFB/Midamerica AirportBLVMedium airport · Serves Belleville48.9 km southeast
Source: OurAirports record · BLV / KBLV
About 48.9 km (30.4 mi) southeast of Alton
Scheduled airline service in source data
Abraham Lincoln Capital AirportSPIMedium airport · Serves Springfield115 km north-northeast
Source: OurAirports record · SPI / KSPI
About 115 km (71.2 mi) north-northeast of Alton
Scheduled airline service in source data
Nearby places
Frequently asked questions
- What time zone is Alton in?
- Alton uses Central Standard Time (CST, UTC−6) in winter and Central Daylight Time (CDT, UTC−5) in summer. Its IANA time zone is America/Chicago.
- When is the next clock change in Alton?
- Clocks in Alton move backward 1 hour on Sunday, November 1, 2026 at 2:00 AM, changing from CDT (UTC−05:00) to CST (UTC−06:00)
- Does Alton observe daylight saving time?
- Yes. Alton observes daylight saving time: CDT (UTC−5) in summer and CST (UTC−6) in winter.
- What is the UTC offset of Alton?
- Alton is UTC−6 in winter and UTC−5 in summer