Houston SeoulTime Converter

Houston (CDT, UTC−5) is currently 14 hours behind Seoul (KST, UTC+9). Compare live clocks, convert any hour, and find times to meet.

Live DST-aware Shareable URLs
 
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Quick answer

When it's in Houston, it's the same day in Seoul.

Houston (CST/CDT) runs 14 hours behind Seoul (KST). A 9-to-5 workday on one side lands in the other side's evening or night, so the two cities share almost no normal working hours — edge-of-day calls are the trick.

Time difference
+14h 00m
Houston
UTC−5
Seoul
UTC+9
Best call window
Outside 9–6
Hour by hour

Houston to Seoul conversion table

The next 12 hours in Houston and the matching local time in Seoul. The current hour is highlighted; drag the converter's slider and the table follows.

Hourly conversion from Houston to Seoul
Houston · CDT Seoul · KST Seoul status
NOW
Mon, Jun 22
Mon, Jun 22
Night
Mon, Jun 22
Mon, Jun 22
Night
Mon, Jun 22
Mon, Jun 22
Night
Mon, Jun 22
Mon, Jun 22
Night
Mon, Jun 22
Tue, Jun 23
Night
Mon, Jun 22
Tue, Jun 23
Night
Mon, Jun 22
Tue, Jun 23
Night
Mon, Jun 22
Tue, Jun 23
Night
Mon, Jun 22
Tue, Jun 23
Night
Mon, Jun 22
Tue, Jun 23
Night
Mon, Jun 22
Tue, Jun 23
Day
Mon, Jun 22
Tue, Jun 23
Day
Meeting planner

Best time to meet between Houston & Seoul

Working hours are 9am–6pm in each city. The bright band is where they overlap — when both sides are at their desks.

Houston CDT
Seoul KST
Both in business hours Business hours (9–18) Morning / evening Night Now
Business hours (9:00 AM – 6:00 PM) in Houston and Seoul do not overlap. When it is 9:00 AM in Houston, it is already 11:00 PM in Seoul — schedule around early mornings or late evenings instead.
Good to know

Daylight saving shifts this gap by up to 1 hour

The difference between Houston and Seoul swings between 14 and 15 hours across the year as each side starts or ends daylight saving. Clocks in Houston move back 1 hour to CST (UTC−6) on Sunday, November 1, 2026. Seoul does not observe daylight saving time. This page always shows the live, DST-aware difference.

Built for humans and machines

One source of truth — for you and your AI

This page exposes the same answer as structured data, so when you ask an assistant "what's 9am Houston time in Seoul?", it can cite the exact, DST-aware result — not a stale blog post.

  • Schema.org JSON-LD on every converter page
  • A machine-readable facts island with IANA zones and every possible offset
  • Live times in <time datetime> elements with explicit UTC offsets
JSON #timezone-pair-data · embedded in this page
{
  "pair": "Houston → Seoul",
  "url": "https://worldclock.pro/en/convert/houston-to-seoul",
  "from": {
    "name": "Houston",
    "type": "city",
    "abbreviation": "CST",
    "daylightAbbreviation": "CDT",
    "iana": "America/Chicago",
    "standardUtcOffset": "-06:00",
    "daylightUtcOffset": "-05:00",
    "referenceCity": "Houston"
  },
  "to": {
    "name": "Seoul",
    "type": "city",
    "abbreviation": "KST",
    "daylightAbbreviation": null,
    "iana": "Asia/Seoul",
    "standardUtcOffset": "+09:00",
    "daylightUtcOffset": null,
    "referenceCity": "Seoul"
  },
  "currentDifferenceMinutes": 840,
  "possibleDifferencesMinutes": [
    840,
    900
  ],
  "note": "Between the regions that use these zones the difference is 14 and 15 hours across the year, depending on daylight saving on each side. The clocks on this page show the named zones themselves, which are fixed."
}

Frequently asked questions

What is the time difference between Houston and Seoul?

Houston is currently 14 hours behind Seoul. Houston is on CDT (UTC−5) and Seoul is on KST (UTC+9). The difference can change when either side starts or ends daylight saving time.

Is Seoul ahead of or behind Houston?

Seoul is currently 14 hours ahead of Houston.

When it is 9:00 AM in Houston, what time is it in Seoul?

When it is 9:00 AM on a Monday in Houston, it is 11:00 PM in Seoul.

Do Houston and Seoul observe daylight saving time?

Clocks in Houston move back 1 hour to CST (UTC−6) on Sunday, November 1, 2026. Seoul does not observe daylight saving time.

How do I convert Houston time to Seoul time?

Add 14 hours to any time in Houston to get the time in Seoul. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.

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