Seongnam to Nosara: time difference
Nosara is 15 h behind Seongnam. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Seongnam 06:39 6:39 AM Nosara 15:39 3:39 PM You –:–
06:39 6:39 AM
Korean Standard Time · UTC+9
☀️ 06:42 · 🌙 17:52
15:39 3:39 PM
Central Standard Time · UTC-6
☀️ 05:32 · 🌙 17:25
·
−15 h
Nosara is 15 h behind Seongnam.
When you, Seongnam and Nosara are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇰🇷 Seongnam
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇨🇷 Nosara
9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇰🇷 Seongnam | 🇨🇷 Nosara |
|---|---|---|
| Local time | 06:39 | 15:39 |
| Local date | Sunday, October 18, 2026 | Saturday, October 17, 2026 |
| Time zone | Korean Standard Time | Central Standard Time |
| UTC offset | UTC+9 | UTC-6 |
| Offset from Seongnam | — | −15 h |
| IANA zone | Asia/Seoul | America/Costa Rica |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:42 | 05:32 |
| Sunset | 17:52 | 17:25 |
| Daylight | 11 h 10 min | 11 h 54 min |
| People on this clock | 967,510 | 4,912 |
Compare Seongnam with another city
More comparisons with Seongnam: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Seongnam and Nosara: common questions
How many hours behind Seongnam is Nosara?
The clocks in Nosara are 15 hours behind those in Seongnam (UTC−6 and UTC+9).
What time is it in Nosara when it is 9:00 AM in Seongnam?
When it is 9:00 AM in Seongnam, it is 6:00 PM (the previous day) in Nosara.
What time is it in Nosara when it is 6:00 PM in Seongnam?
When it is 6:00 PM in Seongnam, it is 3:00 AM in Nosara.
When do working hours in Seongnam and in Nosara overlap?
They don't: there are no shared working hours. The start of the day in Seongnam (9:00 AM) is 6:00 PM (the previous day) in Nosara, and the start of the day in Nosara is 12:00 AM (the next day) in Seongnam.
When does the date change in Nosara compared with Seongnam?
The new day starts in Nosara later: until 3:00 PM in Seongnam, it is still the previous day there. From 9:00 AM in Nosara, Seongnam is already on the next day.
Does the time gap between Seongnam and Nosara change during the year?
No, the clocks change neither in Seongnam nor in Nosara, so the gap is 15 hours all year round.
