Time Difference Between Ottawa and Seoul

The time difference between Ottawa and Seoul is 13 hours. When it is 12:00 noon in Ottawa, it is 01:00 in Seoul. Ottawa uses the America/Toronto time zone (UTC-4), while Seoul uses Asia/Seoul (UTC+9).

Seoul is 13 hours ahead of Ottawa — 13 hours
Ottawa, Canada
18:21:54
Thursday, March 26, 2026
UTC-4 · EDT (DST)
Seoul, South Korea
07:21:54
Friday, March 27, 2026
UTC+9 · KST

Time Zone Details: Ottawa vs Seoul

Detail Ottawa Seoul
Time Zone IDAmerica/TorontoAsia/Seoul
UTC OffsetUTC-4UTC+9
AbbreviationEDTKST
DST ActiveYes — currently observingNo
CountryCanadaSouth Korea
RegionNorth AmericaAsia

Best Time to Schedule a Call

With a 13 hours gap, there is no standard business-hours overlap between Ottawa and Seoul. One party will need to adjust their schedule. Early mornings in Seoul or late evenings in Ottawa tend to be the most practical compromise.

Hour-by-Hour Time Conversion

Use this table to quickly convert any hour from Ottawa time to Seoul time. Rows highlighted in green indicate overlapping business hours in both cities.

Ottawa Seoul
00:00 13:00 Night
01:00 14:00 Night
02:00 15:00 Night
03:00 16:00 Night
04:00 17:00 Night
05:00 18:00 Night
06:00 19:00
07:00 20:00
08:00 21:00
09:00 22:00
10:00 23:00
11:00 00:00 (+1 day)
12:00 01:00 (+1 day)
13:00 02:00 (+1 day)
14:00 03:00 (+1 day)
15:00 04:00 (+1 day)
16:00 05:00 (+1 day)
17:00 06:00 (+1 day)
18:00 07:00 (+1 day)
19:00 08:00 (+1 day)
20:00 09:00 (+1 day)
21:00 10:00 (+1 day)
22:00 11:00 (+1 day) Night
23:00 12:00 (+1 day) Night

Daylight Saving Time (DST) Impact

Ottawa is currently observing daylight saving time, while Seoul is on standard time. When Ottawa switches back to standard time, the difference between these two cities will shift by 1 hour.

Practical Tips for Ottawa–Seoul Scheduling

Compare Ottawa and Seoul with Other Cities

From Ottawa

From Seoul

Frequently Asked Questions

What is the time difference between Ottawa and Seoul?

The time difference is 13 hours. Seoul is 13 hours ahead of Ottawa.

Does the time difference change during the year?

Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.

When is the best time to call from Ottawa to Seoul?

There is no ideal window during standard business hours. Consider scheduling at the edges — early morning for the city that is ahead and late afternoon for the city that is behind.

How do I convert Ottawa time to Seoul time?

Add 13 hours to Ottawa time to get Seoul time. Use the hour-by-hour table above for a quick reference.

Related Pages

For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.