What time zone is Herculaneum in?

Herculaneum 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 Herculaneum?

Clocks in Herculaneum 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 Herculaneum observe daylight saving time?

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

What is the UTC offset of Herculaneum?

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

Current Time in Herculaneum, Jefferson County, Missouri, USA

8:20:16 PM

20:20:16

Friday, November 13, 2026

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

America/Chicago

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Time zone details

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

Daylight in Herculaneum

Sunrise6:40 AMSolar noon11:45 AMSunset4:50 PM

Next clock changeMar 14, 2027 · Clocks move forward 1 hour · in 120 daysUpcomingView details Weather nowLoading current forecast…Forecast details

Location facts

Place

Country: USA
State: Missouri
County: Jefferson County
Place type: Populated place
Country currency: US Dollar (USD)

Practical

Country languages: English, Spanish, Hawaiian, French
Dialing code: +1
Population: 3,935
Elevation: 135 m

Geography

Geographic coordinates: 38° 16' N / 90° 22' W

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Clock changes in Herculaneum

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: 6:40 AM
Solar noon: 11:45 AM
Sunset: 4:50 PM
Daylight duration: 10 hr 10 min1 min 53 sec shorter than the previous day

Civil twilight: 6:12 AM – 5:18 PM
Nautical twilight: 5:40 AM – 5:50 PM
Astronomical twilight: 5:09 AM – 6:21 PM

Waxing CrescentMoon illumination18%

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Friday, November 13, 2026

View Herculaneum on Savvy Time's time-zone map

Sun

Sunrise: 6:40 AM (southeast, 112.5°)
Sunset: 4:50 PM (southwest, 247.3°)
Day length: 10 hr 10 min1 min 53 sec shorter than the previous day
Solar noon: 11:45 AM (33.7° altitude)

Civil twilight

Dawn to dusk: 6:12 AM – 5:18 PM

Additional twilight

Nautical dawn to dusk: 5:40 AM – 5:50 PM
Astronomical dawn to dusk: 5:09 AM – 6:21 PM

Moon

Phase: Waxing Crescent (18% illuminated)
Moonrise: 10:48 AM (southeast, 124.9°)
Moonset: 8:02 PM (southwest, 236.1°)
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
Friday, November 13	6:40 AM	4:50 PM	10 hr 10 min	1 min 53 sec shorter than the previous day
Saturday, November 14	6:41 AM	4:49 PM	10 hr 08 min	1 min 51 sec shorter than the previous day
Sunday, November 15	6:42 AM	4:48 PM	10 hr 06 min	1 min 50 sec shorter than the previous day
Monday, November 16	6:44 AM	4:48 PM	10 hr 04 min	1 min 48 sec shorter than the previous day
Tuesday, November 17	6:45 AM	4:47 PM	10 hr 02 min	1 min 45 sec shorter than the previous day
Wednesday, November 18	6:46 AM	4:46 PM	10 hr 01 min	1 min 44 sec shorter than the previous day
Thursday, November 19	6:47 AM	4:46 PM	9 hr 59 min	1 min 41 sec shorter than the previous day

Weather forecast for Herculaneum

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Plan around Herculaneum

Upcoming public holidays in Missouri

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 Herculaneum in?: Herculaneum 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 Herculaneum?: Clocks in Herculaneum 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 Herculaneum observe daylight saving time?: Yes. Herculaneum observes daylight saving time: CDT (UTC−5) in summer and CST (UTC−6) in winter.
What is the UTC offset of Herculaneum?: Herculaneum is UTC−6 in winter and UTC−5 in summer