No overlap — one side will join outside working hours
KST (Seoul)
LOS-ANGELES (Los Angeles)
00:00
08:00-1d
01:00
09:00-1dWorking
02:00
10:00-1dWorking
03:00
11:00-1dWorking
04:00
12:00-1dWorking
05:00
13:00-1dWorking
06:00
14:00-1dWorking
07:00
15:00-1dWorking
08:00
16:00-1dWorking
09:00Working
17:00-1doff
10:00Working
18:00-1doff
11:00Working
19:00-1doff
12:00Working
20:00-1doff
13:00Working
21:00-1doff
14:00Working
22:00-1doff
15:00Working
23:00-1doff
16:00Working
00:00off
17:00
01:00
18:00
02:00
19:00
03:00
20:00
04:00
21:00
05:00
22:00
06:00
23:00
07:00
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between kst and los-angeles?
Korea Standard Time (kst) is UTC+9 and LOS-ANGELES (Los Angeles) (los-angeles) is UTC-7. The difference between them is 16 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 los-angeles used?
LOS-ANGELES (Los Angeles) (los-angeles) is used in USA and surrounding regions. The IANA timezone identifier is America/Los_Angeles.
How do I convert kst to los-angeles?
Use the interactive converter above. Drag the time slider to any kst time and the los-angeles equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
KST (Seoul) to Los Angeles — exact time difference
KST (Seoul) is 16 hours ahead of Los Angeles. Midday in KST (Seoul) lines up with 20:00 in Los Angeles.
KST (Seoul) runs on Asia/Seoul; Los Angeles runs on America/Los_Angeles. Together they are 16 hours apart.
Working hours overlap
There is no business hours overlap between KST (Seoul) and Los Angeles during standard working hours (9:00–17:00). Meetings would require one party to work outside normal hours.
Best times to schedule a meeting
KST (Seoul) and Los Angeles have no shared working window. These slots minimize out-of-hours disruption for both sides.
08:00 Seoul / 16:00 Los Angeles⚡ One side off-hours
⚠️ 1h before working hours in Seoul
09:00 Seoul / 17:00 Los Angeles⚡ One side off-hours
⚠️ 1h after working hours in Los Angeles
07:00 Seoul / 15:00 Los Angeles⚡ One side off-hours
⚠️ 2h before working hours in Seoul
Working hours defined as 09:00–17:00 local time for each location.
Upcoming public holidays
⚡ Watch out — upcoming holidays on both sides. Verify availability in advance.
KST (Seoul)7 holidays
Aug 15Liberation Day
Sep 24Chuseok
Sep 25Chuseok
Sep 26Chuseok
Oct 3National Foundation Day
Los Angeles7 holidays
Jul 3Independence DaySOON
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
Nov 11Veterans Day
How to work with KST (Seoul) and Los Angeles time zones
Working across KST (Seoul) (South Korea) and Los Angeles (USA) is a challenge — the 16-hour difference means no shared business hours window under a standard schedule. Flexibility from at least one side is required.
💡 How to schedule across these time zones
⚡
A 08:00 meeting in KST (Seoul) means 16:00 in Los Angeles (1h before working hours in Seoul).
⚡
A 09:00 meeting in KST (Seoul) means 17:00 in Los Angeles (1h after working hours in Los Angeles).
⚡
A 07:00 meeting in KST (Seoul) means 15:00 in Los Angeles (2h before working hours in Seoul).
Since there is no natural overlap, the options above represent the most balanced compromise, minimizing out-of-hours inconvenience for both sides.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am KST (Seoul)".
