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Current Time in St. Louis, United States

Q: What timezone is St. Louis in?

St. Louis is in the CST/CDT timezone. The IANA timezone identifier is America/Chicago. The UTC offset is -6:00 in winter and -5:00 in summer.

Q: What is the UTC offset for St. Louis?

St. Louis's UTC offset is UTC-6:00 in winter and UTC-5:00 in summer. UTC offset means how many hours ahead of or behind Coordinated Universal Time (UTC) the local time is.

Q: What continent is St. Louis in?

St. Louis is located in North America. It is the 301 thousand population city in United States.

United States · CST/CDT · UTC-6:00 / UTC-5:00 (DST)

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America/Chicago

St. Louis Timezone Details

Timezone	CST/CDT
UTC Offset (standard)	UTC-6:00
UTC Offset (summer/DST)	UTC-5:00
Daylight Saving Time	Yes (observed)
IANA Timezone ID	America/Chicago
Country	United States
Population	301 thousand

Live Time Comparison — St. Louis

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📅 Public Holidays in United States (2026)

Upcoming public holidays for United States. Dates marked (est.) are approximate and subject to official confirmation.

Jan 1

New Year's Day

Jan 19

Martin Luther King Jr. Day

Feb 16

Presidents' Day

May 25

Memorial Day

Jun 19

Juneteenth

Jul 4

Independence Day

Sep 7

Labor Day

Oct 12

Columbus Day

Nov 11

Veterans Day

Nov 26

Thanksgiving Day

Dec 25

Christmas Day

Business hours may be affected on these dates. Check local schedules before planning calls or visits.

📞 Best Time to Call St. Louis

Find the best hours for a call between St. Louis (CST/CDT, UTC-6:00) and another city.

Calling to:

✈ St. Louis Airport & Flight Time Calculator

✈ STL St. Louis Lambert International

Estimate flight time from:

About St. Louis Time Zone (CST/CDT)

St. Louis, Missouri, uses Central Standard Time (CST, UTC−6) in winter and CDT (UTC−5) in summer. Famous for the Gateway Arch and a major hub for agriculture and transportation.

Key fact: St. Louis is in the same timezone as Chicago and Kansas City.

Use the live clock at the top of this page to see the exact current time in St. Louis with seconds. The clock updates every second and uses your browser's timezone database for accuracy.

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Did You Know?

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On This Day in History — Quiz

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Frequently Asked Questions — St. Louis Time

What time is it in St. Louis right now? +

The current time in St. Louis, United States is displayed by the live clock at the top of this page. St. Louis is in the CST/CDT timezone (UTC-6:00 in winter, UTC-5:00 in summer).

What timezone is St. Louis in? +

St. Louis is in the CST/CDT timezone. The IANA timezone identifier is America/Chicago. The UTC offset is -6:00 in winter and -5:00 in summer.

Does St. Louis observe Daylight Saving Time? +

Yes, St. Louis observes Daylight Saving Time (DST). Clocks are set forward in spring and back in autumn. In winter, the UTC offset is -6:00; in summer it is -5:00.

What is the UTC offset for St. Louis? +

St. Louis's UTC offset is UTC-6:00 in winter and UTC-5:00 in summer. UTC offset means how many hours ahead of or behind Coordinated Universal Time (UTC) the local time is.

What is the time difference between St. Louis and London? +

St. Louis (CST/CDT) is UTC-6:00. London (GMT/BST) is UTC+0 in winter and UTC+1 in summer. St. Louis is in the same timezone as Chicago and Kansas City.

How do I convert St. Louis time to UTC? +

To convert St. Louis time to UTC, subtract UTC-6:00 from the local time. For example, if it is 15:00 in St. Louis and the UTC offset is UTC-6:00, you calculate backward to find the UTC equivalent. Use the conversion table on this page for real-time values.

What continent is St. Louis in? +

St. Louis is located in North America. It is the 301 thousand population city in United States.

What is the IANA timezone name for St. Louis? +

The IANA (Internet Assigned Numbers Authority) timezone database identifier for St. Louis is America/Chicago. This is the official timezone name used in programming languages and operating systems.

What time is sunrise in St. Louis today? +

Today's sunrise and sunset times for St. Louis are displayed live in the weather panel at the top of this page. The exact times update daily based on St. Louis's latitude and the current date. Sunrise typically varies between approximately 5:00–8:00 AM depending on the season, with the earliest sunrises around the summer solstice (June) and the latest around the winter solstice (December).

What time does it get dark in St. Louis? +

Sunset times in St. Louis are shown live at the top of this page. Sunset varies by season: in summer, the sun may set as late as 8:00–9:00 PM, while in winter, sunset can occur as early as 4:00–5:00 PM. Check the live display for today's exact sunset time.

How long is a flight from St. Louis? +

Use the flight time calculator on this page to estimate flight times from St. Louis Lambert International (STL) to any of 150+ airports worldwide. The calculator uses the Haversine formula for great-circle distance at 850 km/h cruise speed plus 45 minutes ground time. Popular searches: flight time from St. Louis to London, St. Louis to New York, St. Louis to Dubai, St. Louis to Tokyo.