Seoul to Calamba: time difference
Calamba is 1 h behind Seoul. Live clocks for both, the working hours they share, and how each one sits against your own time.
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Seoul 03:40 3:40 AM Calamba 02:40 2:40 AM You –:–
03:40 3:40 AM
Korean Standard Time · UTC+9
☀️ 06:43 · 🌙 17:53
02:40 2:40 AM
Philippine Standard Time · UTC+8
☀️ 05:47 · 🌙 17:35
·
−1 h
Calamba is 1 h behind Seoul.
When you, Seoul and Calamba are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇰🇷 Seoul
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
🇵🇭 Calamba
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇰🇷 Seoul | 🇵🇭 Calamba |
|---|---|---|
| Local time | 03:40 | 02:40 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Korean Standard Time | Philippine Standard Time |
| UTC offset | UTC+9 | UTC+8 |
| Offset from Seoul | — | −1 h |
| IANA zone | Asia/Seoul | Asia/Manila |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:43 | 05:47 |
| Sunset | 17:53 | 17:35 |
| Daylight | 11 h 10 min | 11 h 48 min |
| People on this clock | 9,509,458 | 539,671 |
Compare Seoul with another city
More comparisons with Seoul: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Seoul and Calamba: common questions
How far behind Seoul is Calamba?
Calamba is 1 hour behind Seoul: UTC+8 against UTC+9.
What time is it in Calamba at the start of the working day in Seoul?
The working day in Seoul starts at 9:00 AM; in Calamba it is 8:00 AM at that moment.
What time is it in Calamba when it is 6:00 PM in Seoul?
When it is 6:00 PM in Seoul, it is 5:00 PM in Calamba.
When is a good time to call Calamba from Seoul?
Between 10:00 AM and 6:00 PM in Seoul – that is 9:00 AM to 5:00 PM in Calamba – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Calamba?
Until 1:00 AM in Seoul it is still the previous day in Calamba. The other way round, from 11:00 PM in Calamba it is already the next day in Seoul.
Does the time difference between Seoul and Calamba change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
