Ilsan to Nosara: time difference
Nosara is 15 h behind Ilsan. 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.
Ilsan 01:11 1:11 AM Nosara 10:11 10:11 AM You –:–
01:11 1:11 AM
Korean Standard Time · UTC+9
☀️ 06:44 · 🌙 17:54
10:11 10:11 AM
Central Standard Time · UTC-6
☀️ 05:32 · 🌙 17:25
·
−15 h
Nosara is 15 h behind Ilsan.
When you, Ilsan 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
🇰🇷 Ilsan
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 | 🇰🇷 Ilsan | 🇨🇷 Nosara |
|---|---|---|
| Local time | 01:11 | 10:11 |
| 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 Ilsan | — | −15 h |
| IANA zone | Asia/Seoul | America/Costa Rica |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:44 | 05:32 |
| Sunset | 17:54 | 17:25 |
| Daylight | 11 h 10 min | 11 h 54 min |
| People on this clock | 1,061,752 | 4,912 |
Compare Ilsan with another city
More comparisons with Ilsan: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Ilsan and Nosara: common questions
What is the time difference between Ilsan and Nosara?
Nosara is 15 hours behind: it uses UTC−6, while Ilsan is on UTC+9.
What time is it in Nosara when it is 9:00 AM in Ilsan?
When it is 9:00 AM in Ilsan, it is 6:00 PM (the previous day) in Nosara.
What time is it in Nosara at the end of the working day in Ilsan?
The working day in Ilsan ends at 6:00 PM; in Nosara it is 3:00 AM at that moment.
Is there a time when both Ilsan and Nosara are at work?
No, the working days (9:00 AM–6:00 PM) do not overlap. When the day starts in Ilsan at 9:00 AM, it is 6:00 PM (the previous day) in Nosara; the day in Nosara starts at 12:00 AM (the next day) in Ilsan time.
Until what time in Ilsan is it still yesterday in Nosara?
Before 3:00 PM in Ilsan, the date in Nosara has not changed yet. From 9:00 AM in Nosara, it is already the next day in Ilsan.
Does the time difference between Ilsan and Nosara change?
No. Neither place uses daylight saving time, so the difference stays 15 hours all year.
