South Korea to Toronto
-13hSouth Korea
KSTSOURCEToronto
EDTGreen rows indicate typical business hours (9 AM - 5 PM)
KST and EDT on the World Map
The map below highlights the KST (Korea Standard Time) and EDT (Eastern Standard Time) timezone regions across the globe.
KST – Korea Standard Time
UTC+09:00Korea Standard Time (KST) is the time zone for South Korea, 9 hours ahead of UTC.
- •South Korea does not observe daylight saving time.
- •Seoul is home to Samsung, LG, and Hyundai headquarters.
- •KST is the same offset as JST (UTC+09:00).
EST – Eastern Standard Time
UTC-05:00Eastern Standard Time (EST) is the time zone for the eastern United States and Canada, 5 hours behind UTC.
- •EST is the most widely used time zone in the United States by population.
- •The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
- •23 US states are fully or partially in the Eastern Time Zone.
- •EST was established by the Standard Time Act of 1918.
- •Over 47% of the US population lives in the Eastern Time Zone.
About Toronto
WikipediaToronto shares Eastern Time (EST/EDT) with New York. As Canada's largest city and financial center, Toronto's TSX is among North America's largest stock exchanges.
Toronto is the most multicultural city in the world - over 50% of residents were born outside Canada.
Comparing Time Zones: South Korea and Toronto
South Korea runs on Korean Standard Time (KST) at UTC+09:00. Toronto runs on Eastern Daylight Time (EDT) at UTC-04:00, also currently on daylight saving time. That puts South Korea 13 hours behind Toronto — a difference of -13h at the current offsets.
In practice, when it is 9:00 AM in South Korea it is 8:00 PM in Toronto on the previous day. Midnight in South Korea is 11:00 AM in Toronto.Toronto observes daylight saving time while South Korea does not, so the gap narrows or widens by an hour part of the year.
South Korea to Toronto time conversion table
| South Korea (KST) | Toronto (EDT) | Day |
|---|---|---|
| 12:00 AM | 11:00 AM | previous day |
| 6:00 AM | 5:00 PM | previous day |
| 7:00 AM | 6:00 PM | previous day |
| 8:00 AM | 7:00 PM | previous day |
| 9:00 AM | 8:00 PM | previous day |
| 12:00 PM | 11:00 PM | previous day |
| 3:00 PM | 2:00 AM | same day |
| 5:00 PM | 4:00 AM | same day |
| 6:00 PM | 5:00 AM | same day |
| 9:00 PM | 8:00 AM | same day |
Why people convert South Korea to Toronto time
- Scheduling a call from South Korea to Toronto: a 10:00 AM start in South Korea lands at 9:00 PM in Toronto the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -13h gap: South Korea and Toronto have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in Toronto is 8:00 PM in South Korea.
- Watching a live event or market open: South Korea viewers need 8:00 PM in Toronto to catch a 9:00 AM start there, and 1:00 PM if the event is anchored to South Korea.
- Always state the zone abbreviation, not just the hour. "3:00 PM KST" is unambiguous; "3 PM" across a -13h gap is not.
- With a -13h gap there is no shared 9-to-5 window, so alternate the early start: one week South Korea takes the early slot, the next week Toronto does.
- Toronto: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.
About KST (Korea Standard Time)
Korea Standard Time (KST) is the time zone used in South Korea. It shares the same UTC offset as Japan Standard Time but is a distinct time zone. South Korea does not observe daylight saving time. Seoul, the capital, is a major global tech and business hub.
About EST (Eastern Standard Time)
Eastern Standard Time (EST) is observed during the winter months in the eastern part of North America. It covers 23 US states and parts of Canada including Ontario and Quebec. EST is the most populous time zone in the United States, home to major financial centers like New York City and global organizations headquartered in Washington D.C. During daylight saving time (March–November), clocks shift to Eastern Daylight Time (EDT, UTC-04:00). The time zone also covers parts of the Caribbean and Central America including Panama, Jamaica, and the Cayman Islands.
Best time to call between South Korea and Toronto
With a -13h offset there is no overlap inside a normal 9 AM – 5 PM day. Toronto opens at 9:00 AM EDT, which is 8:00 PM in South Korea, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
South Korea and Toronto have no shared working hours because of the -13h gap. Teams need to alternate early starts or rely on asynchronous handovers.
South Korea is 13 hours behind Toronto (KST UTC+09:00 → EDT UTC-04:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
South Korea
Does not observe DST
Toronto
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between South Korea and Toronto?
South Korea (KST, UTC+09:00) is 13 hours behind Toronto (EDT, UTC-04:00). The gap is currently -13h.
How do I convert South Korea time to Toronto time?
Add -13h to South Korea local time. For example, 9:00 AM in South Korea is 8:00 PM in Toronto (previous day).
What time is it in Toronto right now?
Toronto uses EDT at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -13h offset from South Korea.
What is the best time to call Toronto from South Korea?
There is no shared working-hours window because of the -13h gap. The closest option is 1:00 PM in South Korea, which is 12:00 AM in Toronto.
Which is behind, South Korea or Toronto?
South Korea is 13 hours behind Toronto. When it is 12:00 PM in South Korea it is 11:00 PM in Toronto.
Do South Korea and Toronto use different time zones?
South Korea (South Korea) uses KST at UTC+09:00, while Toronto (Canada) uses EDT at UTC-04:00. The IANA identifiers are Asia/Seoul and America/Toronto.
Does daylight saving time affect the South Korea–Toronto difference?
Yes at the moment: Toronto is on daylight saving time and South Korea is not, so the -13h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share South Korea's time zone?
KST also covers Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.
Which countries use KST, South Korea's zone?
KST is used in South Korea, North Korea.
Is there a day difference between South Korea and Toronto?
Sometimes. The -13h gap is large enough that 8:00 PM or later in South Korea already falls on the in Toronto.
What is the time difference between South Korea and Toronto?
Toronto is -13h from South Korea.
What timezone is South Korea in?
South Korea operates on its local timezone.
What timezone is Toronto in?
Toronto shares Eastern Time (EST/EDT) with New York. As Canada's largest city and financial center, Toronto's TSX is among North America's largest stock exchanges.
What are the business hours in Toronto?
Standard business hours in Toronto are 9:00 AM - 5:00 PM EST.
Which countries use KST (Korea Standard Time)?
KST is used in South Korea, North Korea.
Does KST observe daylight saving time?
No, KST does not observe daylight saving time and remains at UTC+09:00 year-round.
What are some interesting facts about KST?
South Korea does not observe daylight saving time. Seoul is home to Samsung, LG, and Hyundai headquarters.
Which cities are in the EST timezone?
Major cities in the EST timezone include New York City, Washington D.C., Miami, Toronto, Philadelphia, Atlanta, Boston, Montreal.
What is the UTC offset for EST?
Eastern Standard Time (EST) is at UTC-05:00. During daylight saving time, it shifts to EDT.
What should I know about the EST timezone?
EST is the most widely used time zone in the United States by population. The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
When is it midnight in South Korea, what time is it in Toronto?
When it is 12:00 AM (midnight) in South Korea (KST), it is -13h later in Toronto (EST).
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