Offset
The time difference between Ottawa and Seoul is 13 hours.
Ottawa (EDT) is behind Seoul (KST).
EDT: UTC-4
KST: UTC+9
Ottawa is currently observing daylight saving time; Seoul is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Ottawa and Seoul don't overlap on the same weekday. Seoul is 13 hours ahead of Ottawa.
With some flexibility, there’s a workable window outside standard hours:
- 6 PM–8 PM in Ottawa (7 AM–9 AM the next day in Seoul) — suggest 7:00 PM Ottawa (8:00 AM Seoul).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Canada
- New Year's DayThu, Jan 1
- Good FridayFri, Apr 3
- Victoria DayMon, May 18
- Canada DayWed, Jul 1
- Labour DayMon, Sep 7
- National Day for Truth and ReconciliationWed, Sep 30
- ThanksgivingMon, Oct 12
- Christmas DayFri, Dec 25
South Korea
- New Year's DayThu, Jan 1
- Lunar New YearMon, Feb 16
- Lunar New YearTue, Feb 17
- Lunar New YearWed, Feb 18
- Independence Movement DayMon, Mar 2
- Labour DayFri, May 1
- Children's DayTue, May 5
- Buddha's BirthdayMon, May 25
- Local Election DayWed, Jun 3
- Memorial DaySat, Jun 6
- Constitution DayFri, Jul 17
- Liberation DayMon, Aug 17
- ChuseokThu, Sep 24
- ChuseokFri, Sep 25
- ChuseokSat, Sep 26
- National Foundation DayMon, Oct 5
- Hangul DayFri, Oct 9
- Christmas DayFri, Dec 25
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Ottawa | Seoul | Day |
|---|---|---|
| 12:00 am | 1:00 pm | Same day |
| 1:00 am | 2:00 pm | Same day |
| 2:00 am | 3:00 pm | Same day |
| 3:00 am | 4:00 pm | Same day |
| 4:00 am | 5:00 pm | Same day |
| 5:00 am | 6:00 pm | Same day |
| 6:00 am | 7:00 pm | Same day |
| 7:00 am | 8:00 pm | Same day |
| 8:00 am | 9:00 pm | Same day |
| 9:00 am | 10:00 pm | Same day |
| 10:00 am | 11:00 pm | Same day |
| 11:00 am | 12:00 am | +1 day |
| 12:00 pm | 1:00 am | +1 day |
| 1:00 pm | 2:00 am | +1 day |
| 2:00 pm | 3:00 am | +1 day |
| 3:00 pm | 4:00 am | +1 day |
| 4:00 pm | 5:00 am | +1 day |
| 5:00 pm | 6:00 am | +1 day |
| 6:00 pm | 7:00 am | +1 day |
| 7:00 pm | 8:00 am | +1 day |
| 8:00 pm | 9:00 am | +1 day |
| 9:00 pm | 10:00 am | +1 day |
| 10:00 pm | 11:00 am | +1 day |
| 11:00 pm | 12:00 pm | +1 day |
Daylight saving time
Ottawa observes daylight saving time; Seoul does not. The offset between the two zones changes when Ottawa transitions: on Sunday, November 1, 2026, clocks fall back from EDT to EST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:16 AM
- Sunset
- 8:49 PM
- Day length
- 15h 33m
- Sunrise
- 5:12 AM
- Sunset
- 7:52 PM
- Day length
- 14h 41m
Daylight overlap: 4h 37m — 4:12 PM–8:49 PM in Ottawa (5:12 AM–9:49 AM in Seoul). Both locations are in daylight during this window.
Cities in these zones
Other cities in Eastern Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Eastern Time
- YTZ
- YYZ
- YHU
- YMX
- YUL
- YND
- YOW
- YRO
Airports in Korea Standard Time
- GMP
- ICN
- PUS
- TAE
- CJJ
- KWJ
- MWX
Related conversions
Common conversions
- What is 9:00 am Ottawa in Seoul?
- 9:00 am Ottawa is 10:00 pm Seoul.
- What is 12:00 pm Ottawa in Seoul?
- 12:00 pm Ottawa is 1:00 am Seoul, the next day.
- What is 12:30 pm Ottawa in Seoul?
- 12:30 pm Ottawa is 1:30 am Seoul, the next day.
- What is 2:00 pm Ottawa in Seoul?
- 2:00 pm Ottawa is 3:00 am Seoul, the next day.
- What is 5:00 pm Ottawa in Seoul?
- 5:00 pm Ottawa is 6:00 am Seoul, the next day.
- What is 11:30 pm Ottawa in Seoul?
- 11:30 pm Ottawa is 12:30 pm Seoul, the next day.