Korea Standard Time (kst) is used in South Korea. The IANA timezone identifier is Asia/Seoul.

Singapore Time (sgt) is used in Singapore. The IANA timezone identifier is Asia/Singapore.

KST to SGT Time Converter

Korea Standard Time → Singapore Time

KST = UTC+9SGT = UTC+8

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

SGT (Singapore)

Singapore · -1h

08:00

London

United Kingdom · -8h

01:00

New York

USA · -13h

20:00-1 day

Tokyo

Japan · UTC±0

09:00

Dubai

United Arab Emirates · -5h

04:00

KST (Seoul) vs SGT (Singapore) — time difference

KST (Seoul) is 1 hour ahead of SGT (Singapore). When KST (Seoul) clocks hit noon, SGT (Singapore) reads 11:00.

KST (Seoul) observes Asia/Seoul and SGT (Singapore) observes Asia/Singapore — a 1 hour gap between them.

Shared working hours

Every working day, KST (Seoul) and SGT (Singapore) are both in business hours for 7 hours simultaneously.

00:0006:0012:0018:0024:00

KST (Seoul)

SGT (Singapore)

Overlap (7h)

Optimal meeting slots

KST (Seoul) and SGT (Singapore) share 7 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.

10:00 Seoul / 09:00 Singapore✓ Both working

11:00 Seoul / 10:00 Singapore✓ Both working

12:00 Seoul / 11:00 Singapore✓ Both working

Assumes a standard 9 AM–5 PM workday in each location's local timezone.

Holiday calendar for both locations

⚡ Both locations have upcoming holidays, check availability before scheduling.

KST (Seoul)7 holidays

Aug 15Liberation Day

Sep 24Chuseok

Sep 25Chuseok

Sep 26Chuseok

Oct 3National Foundation Day

SGT (Singapore)3 holidays

Aug 10National Day

Nov 9Deepavali

Dec 25Christmas Day

Working across KST (Seoul) and SGT (Singapore)

Coordinating between KST (Seoul) (South Korea) and SGT (Singapore) (Singapore) means working around a 1-hour time difference. The 7-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.

💡 Best practice for cross-timezone meetings

✅

Schedule at 10:00–11:00 (KST (Seoul)) for a 09:00–10:00 slot in SGT (Singapore) — the sweet spot where both teams are working.

✅

Schedule at 11:00–12:00 (KST (Seoul)) for a 10:00–11:00 slot in SGT (Singapore) — the sweet spot where both teams are working.

✅

Schedule at 12:00–13:00 (KST (Seoul)) for a 11:00–12:00 slot in SGT (Singapore) — the sweet spot where both teams are working.

Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.

Install ClockinSync Free →

Drag the slider at the top to convert any KST (Seoul) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.

KST (Seoul) ↔ SGT (Singapore)

7h of business hours overlap daily (09:00–17:00)

KST (Seoul)

SGT (Singapore)

00:00

23:00-1d

01:00

00:00

02:00

01:00

03:00

02:00

04:00

03:00

05:00

04:00

06:00

05:00

07:00

06:00

08:00

07:00

09:00Working

08:00off

10:00Working

09:00Working

11:00Working

10:00Working

12:00Working

11:00Working

13:00Working

12:00Working

14:00Working

13:00Working

15:00Working

14:00Working

16:00Working

15:00Working

17:00

16:00Working

18:00

17:00

19:00

18:00

20:00

19:00

21:00

20:00

22:00

21:00

23:00

22:00

Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.

Frequently Asked Questions

What is the difference between kst and sgt?

Korea Standard Time (kst) is UTC+9 and Singapore Time (sgt) is UTC+8. The difference between them is 1 hours.

Where is kst used?

Korea Standard Time (kst) is used in South Korea and surrounding regions. The IANA timezone identifier is Asia/Seoul.

Where is sgt used?

Singapore Time (sgt) is used in Singapore and surrounding regions. The IANA timezone identifier is Asia/Singapore.

How do I convert kst to sgt?

Use the interactive converter above. Drag the time slider to any kst time and the sgt equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular KST conversions

KST → London KST → New York KST → Tokyo KST → Dubai KST → Sydney KST → Paris KST → Berlin KST → Singapore KST → Los Angeles KST → Toronto

Popular SGT conversions

London → SGT New York → SGT Tokyo → SGT Dubai → SGT Sydney → SGT Paris → SGT Berlin → SGT Los Angeles → SGT Toronto → SGT Mumbai → SGT