What time zone is Thornton in?

Thornton 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 Thornton?

Clocks in Thornton move forward 1 hour on Sunday, March 14, 2027 at 2:00 AM, changing from CST (UTC−06:00) to CDT (UTC−05:00)

Does Thornton observe daylight saving time?

Yes. Thornton observes daylight saving time: CDT (UTC−5) in summer and CST (UTC−6) in winter.

What is the UTC offset of Thornton?

Thornton is UTC−6 in winter and UTC−5 in summer

Current Time in Thornton, Cook County, Illinois, USA

2:37:30 AM

02:37:30

Saturday, November 14, 2026

CST (Central Standard Time) · UTC−06:00

America/Chicago

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Time zone details

Thornton is currently on standard time; daylight saving time is observed in 2026

Daylight in Thornton

Sunrise6:38 AMSolar noon11:34 AMSunset4:31 PM

Next clock changeMar 14, 2027 · Clocks move forward 1 hour · in 119 daysUpcomingView details Weather nowLoading current forecast…Forecast details

Location facts

Place

Country: USA
State: Illinois
County: Cook County
Place type: Populated place
Country currency: US Dollar (USD)

Practical

Country languages: English, Spanish, Hawaiian, French
Dialing code: +1
Population: 2,492
Elevation: 182 m

Geography

Geographic coordinates: 41° 34' N / 87° 36' W

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Clock changes in Thornton

Next clock change

Upcoming

Sunday, March 14, 2027

2:00 AM CST3:00 AM CDT

Clocks move forward 1 hour

Sunday, March 8, 2026past
Daylight saving time starts
2:00 AM CST3:00 AM CDT
Clocks move forward 1 hour
Sunday, November 1, 2026past
Daylight saving time ends
2:00 AM CDT1:00 AM CST
Clocks move back 1 hour

Future clock changes, 2027–2030

USA daylight saving time Clock changes worldwide

Sun & Moon details

Sunrise: 6:38 AM
Solar noon: 11:34 AM
Sunset: 4:31 PM
Daylight duration: 9 hr 53 min2 min 6 sec shorter than the previous day

Civil twilight: 6:08 AM – 5:00 PM
Nautical twilight: 5:34 AM – 5:34 PM
Astronomical twilight: 5:02 AM – 6:07 PM

Waxing CrescentMoon illumination25%

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Saturday, November 14, 2026

View Thornton on Savvy Time's time-zone map

Sun

Sunrise: 6:38 AM (southeast, 114.0°)
Sunset: 4:31 PM (southwest, 245.8°)
Day length: 9 hr 53 min2 min 6 sec shorter than the previous day
Solar noon: 11:34 AM (30.1° altitude)

Civil twilight

Dawn to dusk: 6:08 AM – 5:00 PM

Additional twilight

Nautical dawn to dusk: 5:34 AM – 5:34 PM
Astronomical dawn to dusk: 5:02 AM – 6:07 PM

Moon

Phase: Waxing Crescent (25% illuminated)
Moonrise: 11:27 AM (southeast, 123.5°)
Moonset: 8:40 PM (southwest, 238.2°)
Previous principal phase: New Moon — Monday, November 9, 2026 at 1:02 AM
Next principal phase: First Quarter — Tuesday, November 17, 2026 at 5:48 AM

Seven-day daylight outlook

Sunrise, sunset, and daylight for seven local dates
Local date	Sunrise	Sunset	Day length	Daily change
Saturday, November 14	6:38 AM	4:31 PM	9 hr 53 min	2 min 6 sec shorter than the previous day
Sunday, November 15	6:39 AM	4:30 PM	9 hr 51 min	2 min 4 sec shorter than the previous day
Monday, November 16	6:40 AM	4:29 PM	9 hr 49 min	2 min 3 sec shorter than the previous day
Tuesday, November 17	6:41 AM	4:28 PM	9 hr 47 min	2 min shorter than the previous day
Wednesday, November 18	6:43 AM	4:27 PM	9 hr 45 min	1 min 57 sec shorter than the previous day
Thursday, November 19	6:44 AM	4:27 PM	9 hr 43 min	1 min 55 sec shorter than the previous day
Friday, November 20	6:45 AM	4:26 PM	9 hr 41 min	1 min 53 sec shorter than the previous day

Weather forecast for Thornton

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Plan around Thornton

Upcoming public holidays in Illinois

Thu, Nov 26, 2026Thanksgiving Day
Fri, Dec 25, 2026Christmas Day
Fri, Jan 1, 2027New Year's Day

Nearby places

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Frequently asked questions

What time zone is Thornton in?: Thornton 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 Thornton?: Clocks in Thornton move forward 1 hour on Sunday, March 14, 2027 at 2:00 AM, changing from CST (UTC−06:00) to CDT (UTC−05:00)
Does Thornton observe daylight saving time?: Yes. Thornton observes daylight saving time: CDT (UTC−5) in summer and CST (UTC−6) in winter.
What is the UTC offset of Thornton?: Thornton is UTC−6 in winter and UTC−5 in summer