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Time difference between Houston and Seoul
Houston
—
Seoul
—
Seoul is 15 hours ahead of Houston right now.
Does the gap change?
The gap isn't fixed. Houston changes its clocks for daylight saving time and Seoul doesn't, so the difference moves during the year:
- From around March 15, 2027: Seoul ahead by 14 hours
- From around November 8, 2027: Seoul ahead by 15 hours
Best time to meet
Normal office hours in Seoul and Houston don't overlap. The most workable window is 4 PM to 10 PM in Houston, which is 7 AM to 1 PM in Seoul, with one side starting early or finishing late.
For a recurring meeting, it's fairest to rotate which city takes the inconvenient slot.
City details
Houston to Seoul, hour by hour
| Houston | Seoul | ||
|---|---|---|---|
| 12 AM | Night | 3 PM | Work hours |
| 1 AM | Night | 4 PM | Work hours |
| 2 AM | Night | 5 PM | Early or late |
| 3 AM | Night | 6 PM | Early or late |
| 4 AM | Night | 7 PM | Early or late |
| 5 AM | Night | 8 PM | Early or late |
| 6 AM | Night | 9 PM | Early or late |
| 7 AM | Early or late | 10 PM | Night |
| 8 AM | Early or late | 11 PM | Night |
| 9 AM | Work hours | 12 AM (Mon) | Night |
| 10 AM | Work hours | 1 AM (Mon) | Night |
| 11 AM | Work hours | 2 AM (Mon) | Night |
| 12 PM | Work hours | 3 AM (Mon) | Night |
| 1 PM | Work hours | 4 AM (Mon) | Night |
| 2 PM | Work hours | 5 AM (Mon) | Night |
| 3 PM | Work hours | 6 AM (Mon) | Night |
| 4 PM | Work hours | 7 AM (Mon) | Early or late |
| 5 PM | Early or late | 8 AM (Mon) | Early or late |
| 6 PM | Early or late | 9 AM (Mon) | Work hours |
| 7 PM | Early or late | 10 AM (Mon) | Work hours |
| 8 PM | Early or late | 11 AM (Mon) | Work hours |
| 9 PM | Early or late | 12 PM (Mon) | Work hours |
| 10 PM | Night | 1 PM (Mon) | Work hours |
| 11 PM | Night | 2 PM (Mon) | Work hours |
Based on today's clocks. Work hours are 9 AM to 5 PM.