Offset
The time difference between Istanbul and Daejeon is 6 hours.
Istanbul (TRT) is behind Daejeon (KST).
TRT: UTC+3
KST: UTC+9
Neither Istanbul nor Daejeon is currently observing daylight saving time.
When to schedule
Business-hours overlap: 9 AM–11 AM in Istanbul (3 PM–5 PM in Daejeon).
Both teams are in working hours during this window on weekdays.
Suggested time: 10:00 AM Istanbul (4:00 PM Daejeon).
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.
Turkey
- New Year's DayThu, Jan 1
- National Independence & Children's DayThu, Apr 23
- Labour DayFri, May 1
- Atatürk Commemoration & Youth DayTue, May 19
- Democracy and National Unity DayWed, Jul 15
- Victory DaySun, Aug 30
- Republic DayThu, Oct 29
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.
| Istanbul | Daejeon | Day |
|---|---|---|
| 12:00 am | 6:00 am | Same day |
| 1:00 am | 7:00 am | Same day |
| 2:00 am | 8:00 am | Same day |
| 3:00 am | 9:00 am | Same day |
| 4:00 am | 10:00 am | Same day |
| 5:00 am | 11:00 am | Same day |
| 6:00 am | 12:00 pm | Same day |
| 7:00 am | 1:00 pm | Same day |
| 8:00 am | 2:00 pm | Same day |
| 9:00 am | 3:00 pm | Same day |
| 10:00 am | 4:00 pm | Same day |
| 11:00 am | 5:00 pm | Same day |
| 12:00 pm | 6:00 pm | Same day |
| 1:00 pm | 7:00 pm | Same day |
| 2:00 pm | 8:00 pm | Same day |
| 3:00 pm | 9:00 pm | Same day |
| 4:00 pm | 10:00 pm | Same day |
| 5:00 pm | 11:00 pm | Same day |
| 6:00 pm | 12:00 am | +1 day |
| 7:00 pm | 1:00 am | +1 day |
| 8:00 pm | 2:00 am | +1 day |
| 9:00 pm | 3:00 am | +1 day |
| 10:00 pm | 4:00 am | +1 day |
| 11:00 pm | 5:00 am | +1 day |
Daylight saving time
Neither Istanbul nor Daejeon observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:49 AM
- Sunset
- 8:34 PM
- Day length
- 14h 45m
- Sunrise
- 5:28 AM
- Sunset
- 7:47 PM
- Day length
- 14h 19m
Cities in these zones
Other cities in Turkey Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Turkey Time
- IST
- SAW
- ESB
- YEI
- ADB
- GZT
- DIY
- ADA
- COV
- ASR
Airports in Korea Standard Time
- GMP
- ICN
- PUS
- TAE
- CJJ
- KWJ
- MWX
Related conversions
Common conversions
- What is 9:00 am Istanbul in Daejeon?
- 9:00 am Istanbul is 3:00 pm Daejeon.
- What is 12:00 pm Istanbul in Daejeon?
- 12:00 pm Istanbul is 6:00 pm Daejeon.
- What is 12:30 pm Istanbul in Daejeon?
- 12:30 pm Istanbul is 6:30 pm Daejeon.
- What is 2:00 pm Istanbul in Daejeon?
- 2:00 pm Istanbul is 8:00 pm Daejeon.
- What is 5:00 pm Istanbul in Daejeon?
- 5:00 pm Istanbul is 11:00 pm Daejeon.
- What is 11:30 pm Istanbul in Daejeon?
- 11:30 pm Istanbul is 5:30 am Daejeon, the next day.