In the graph below you see the time zone difference between Pacific Standard Time and Korea Standard Time. Drag the bubble to adjust the time and to see the corresponding time in the other time zone.
Pacific Standard Time is the time zone of the Canadian and US West Coast, including cities like Seattle, Vancouver, San Francisco and Los Angeles. Korea Standard Time is the time zone of Korea, with places like Seoul and Busan.
Usually it is preferable to schedule meetings in the early morning, or late evening for the person in PST and in the evening, or early morning for the person in KST.
Pacific Standard Time is the time of the Western United States and Canada and is typically abbreviated as PST. It is 8 hours behind GMT. This means that when the clock is noon in London (GMT), it is 4AM in Seattle (PST).
Most of the Western US and Canada are following Pacific Standard Time.
This can be a bit tricky as most states on the US Pacific Coast do apply daylight saving time, calling PST for PDT, or Pacific Daylight Time, instead and sets the clocks in November and March respectively.
Korean Standard Time, or KST for short, is the standard time zone for South Korea. It is 9 hours ahead of UTC. North Korea was on KST until 2015 when they introduced their own Pyongyang Standard Time, which is 30 minutes behind Korean Standard Time.
South Korea is the only country using Korean Standard Time. It is however the same time as JST – Japan Standard Time and AWDT – Australian Western Daylight Time (i.e. when Western Australia applies Daylight Saving Time). As noted above, North Korea are since 2015 using their own time zone.
All cities in Korea applies KST, including Seoul, Busan, Incheon, Daegu, Daejeon, Suwon and Gwangju.
DST (Daylight Saving Time) is currently not applied in South Korea, although there were experiments during the 1988 Olympics.