Korea Time Zone: Time Difference Between Seoul and Major Cities (Complete Guide)
Planning a trip to Korea or need to schedule a call with someone in Seoul? Understanding the Korea time zone and time difference with Korea is essential for travelers, business meetings, and staying connected with home.
As someone living in Seoul, I’ll break down everything you need to know about Korea time—including how it compares to major cities worldwide, whether Korea observes daylight saving time, and tips for adjusting to the time change.
What Time Zone Is Korea In?
Korea uses Korean Standard Time (KST):
- UTC+9 (9 hours ahead of Coordinated Universal Time)
- No Daylight Saving Time – Korea stays on the same time year-round
- Same time zone as Japan and East Timor
🕐 What time is it in Korea right now? Click here to see current Seoul time
Time Difference Between Korea and Major Cities
Here’s how Korea time compares to popular destinations around the world. Use this as a quick reference when planning calls, flights, or coordinating with people back home.
🌏 Asia-Pacific
| City | Time Difference from Seoul |
|---|---|
| Tokyo, Japan | Same time (UTC+9) |
| Beijing, China | -1 hour (UTC+8) |
| Hong Kong | -1 hour (UTC+8) |
| Singapore | -1 hour (UTC+8) |
| Bangkok, Thailand | -2 hours (UTC+7) |
| Jakarta, Indonesia | -2 hours (UTC+7) |
| New Delhi, India | -3.5 hours (UTC+5:30) |
| Sydney, Australia | +1 hour (UTC+10)* |
| Melbourne, Australia | +1 hour (UTC+10)* |
*Australia observes daylight saving time, so the difference may vary by season.
Example:
When it’s 12:00 PM (noon) in Seoul, it’s:
- 12:00 PM in Tokyo
- 11:00 AM in Hong Kong, Singapore
- 10:00 AM in Bangkok
- 8:30 AM in New Delhi
- 1:00 PM in Sydney (during Australian summer)
🌍 Europe
| City | Time Difference from Seoul |
|---|---|
| London, UK | -9 hours (UTC+0)* |
| Paris, France | -8 hours (UTC+1)* |
| Berlin, Germany | -8 hours (UTC+1)* |
| Rome, Italy | -8 hours (UTC+1)* |
| Amsterdam, Netherlands | -8 hours (UTC+1)* |
| Moscow, Russia | -6 hours (UTC+3) |
*Europe observes daylight saving time (March-October), so the difference changes:
- Winter (Nov-Mar): -9 hours (London), -8 hours (Paris)
- Summer (Apr-Oct): -8 hours (London), -7 hours (Paris)
Example:
When it’s 12:00 PM (noon) in Seoul, it’s:
- 3:00 AM in London (winter) / 4:00 AM (summer)
- 4:00 AM in Paris (winter) / 5:00 AM (summer)
🌎 North America
| City | Time Difference from Seoul |
|---|---|
| New York (EST) | -14 hours* |
| Los Angeles (PST) | -17 hours* |
| Chicago (CST) | -15 hours* |
| Toronto, Canada | -14 hours* |
| Vancouver, Canada | -17 hours* |
*US/Canada observe daylight saving time (March-November), so the difference changes:
- Winter (Nov-Mar): -14 hours (NYC), -17 hours (LA)
- Summer (Mar-Nov): -13 hours (NYC), -16 hours (LA)
Example:
When it’s 12:00 PM (noon) in Seoul, it’s:
- 10:00 PM the previous day in New York (winter) / 11:00 PM (summer)
- 7:00 PM the previous day in Los Angeles (winter) / 8:00 PM (summer)
Pro Tip for North America:
Korea is roughly half a day ahead. If it’s Monday afternoon in Seoul, it’s still Sunday night/Monday morning in the US.
🌎 South America
| City | Time Difference from Seoul |
|---|---|
| São Paulo, Brazil | -12 hours* |
| Rio de Janeiro, Brazil | -12 hours* |
| Buenos Aires, Argentina | -12 hours |
*Brazil observes daylight saving time (some regions), so check current time.
Example:
When it’s 12:00 PM (noon) in Seoul, it’s:
- 12:00 AM (midnight) in São Paulo
🌍 Middle East
| City | Time Difference from Seoul |
|---|---|
| Dubai, UAE | -5 hours (UTC+4) |
| Riyadh, Saudi Arabia | -6 hours (UTC+3) |
| Tehran, Iran | -5.5 hours (UTC+3:30)* |
*Iran observes daylight saving time.
Example:
When it’s 12:00 PM (noon) in Seoul, it’s:
- 7:00 AM in Dubai
- 6:00 AM in Riyadh
Does Korea Observe Daylight Saving Time?
No. Korea does not use daylight saving time.
This makes planning easier—Korea time stays the same all year. However, if you’re calling or scheduling meetings with countries that do observe DST (like the US, Europe, or Australia), remember the time difference will shift twice a year.
How to Calculate Korea Time
Quick Formula:
Korea Time = UTC + 9 hours
Examples:
- If UTC is 03:00, Korea is 12:00 PM (noon)
- If UTC is 15:00, Korea is 12:00 AM (midnight)
For Travelers:
Use this handy reference based on where you’re traveling from:
From North America (EST):
Add 14 hours → If it’s 10 AM Monday in NYC, it’s 12 AM Tuesday (midnight) in Seoul
From Europe (London):
Add 9 hours → If it’s 3 PM in London, it’s 12 AM (midnight) in Seoul
From Australia (Sydney):
Subtract 1 hour → If it’s 1 PM in Sydney, it’s 12 PM (noon) in Seoul
Tips for Adjusting to Korea Time
Traveling to Korea from another time zone? Here’s how to minimize jet lag:
Before You Arrive:
✅ Gradually shift your sleep schedule 1-2 hours per day for 3 days before departure
✅ Stay hydrated on the flight
✅ Set your watch to Korea time as soon as you board
After You Arrive:
✅ Get sunlight exposure during the day—helps reset your internal clock
✅ Stay awake until local bedtime (don’t nap if possible)
✅ Eat meals at local mealtimes
✅ Avoid caffeine after 2 PM
Biggest Challenge:
Travelers from North America often find Korea time the hardest to adjust to—you’re almost exactly 12 hours flipped. Morning feels like night, and vice versa. Give yourself 2-3 days to fully adjust.
Best Times to Call Home from Korea
Calling family or scheduling meetings while in Korea? Here are the best times:
Calling the US (East Coast):
- 9 PM – 11 PM Korea time = 7 AM – 9 AM US time (workday start)
- 11 AM Korea time = 9 PM US time (evening call)
Calling Europe (London/Paris):
- 6 PM – 9 PM Korea time = 9 AM – 12 PM Europe time (mid-morning)
Calling Australia (Sydney):
- 10 AM – 12 PM Korea time = 11 AM – 1 PM Sydney time (lunch break)
Quick Reference: When It’s Noon in Seoul
| Your Location | Your Time |
|---|---|
| Tokyo | 12:00 PM (same) |
| Hong Kong | 11:00 AM |
| Singapore | 11:00 AM |
| Bangkok | 10:00 AM |
| New Delhi | 8:30 AM |
| Dubai | 7:00 AM |
| London | 3:00 AM |
| Paris | 4:00 AM |
| New York | 10:00 PM (previous day) |
| Los Angeles | 7:00 PM (previous day) |
| Sydney | 1:00 PM |
Korea Time Fun Facts
🕐 Korea and Japan share the same time zone, making day trips between the two countries easy—no time adjustment needed!
🌍 Korea is one of the few countries at UTC+9 without daylight saving time, alongside Japan and parts of Indonesia.
📅 Korea used UTC+8:30 until 1954, then switched to UTC+9 for economic and political reasons.
Final Thoughts
Understanding Korea time is essential for a smooth trip—whether you’re planning flight arrivals, video calls with home, or just figuring out when to FaceTime your family.
Since Korea doesn’t change its clocks, it’s one less thing to worry about. Just remember to account for daylight saving time if you’re coordinating with people in the US, Europe, or Australia.
Traveling to Korea soon? Let me know where you’re coming from in the comments—I’ll help you calculate the time difference!