PST vs KST Time Difference
See the current hour gap between Pacific Standard Time and Korea Standard Time, understand DST changes, and plan meetings faster.
Current Hour Gap
PST is UTC-8 and KST is UTC+9, creating a standard 17-hour time difference. View the live offset and compare business hours between both time zones.
DST Impact Tracking
KST does not observe daylight saving time, while Pacific Time shifts seasonally between PST and PDT. The page tracks these changes automatically using the IANA timezone database.
Best Meeting Windows
Use the visual comparison grid and hour-by-hour table to find overlap times for calls. Export selected times with ICS download or send to Google Calendar and Gmail.
How to Find the Time Difference Between PST and KST
Open the PST vs KST converter: Visit https://www.xconvert.com/time-converter/pst-vs-kst to load a comparison grid with Pacific Standard Time and Korea Standard Time ready to review. This page is useful when you are scheduling a call between the U.S. or Canada West Coast and teams in Seoul, or when a game studio, electronics supplier, or remote engineering team needs to line up work across a 17-hour gap.
Add comparison cities with + Add City: Click + Add City and search for cities that matter to your workflow, such as Los Angeles, Vancouver, or Seoul. This is especially practical for companies working across Pacific Rim supply chains, Korean consumer electronics partners, or entertainment and gaming teams coordinating releases between North America and South Korea.
Drag across the grid to compare working hours: Click Select if needed, then drag across the colored timeline on the PST row to highlight a meeting window in purple. For example, selecting 9:00 PST to 12:00 PST shows 2:00 KST to 5:00 KST the next day, which quickly confirms that a morning meeting in PST lands in the early morning of the following day in Korea and may not suit a standard office schedule.
Export the selected overlap: After choosing a time range, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is helpful when you need to send a confirmed handoff window to a California product team and a Seoul operations team so everyone receives the meeting in local time without manually converting anything.
PST vs KST Offset Explained
PST is Pacific Standard Time, UTC-8, while KST is Korea Standard Time, UTC+9. KST is 17 hours ahead of PST, so when it is 9:00 PST, it is 2:00 KST the next day, and when it is 18:00 PST, it is 11:00 KST the next day. That next-day shift is the key detail for planning calls, release cutoffs, and support coverage between North America and Korea.
The practical effect of this offset is that standard business hours rarely line up cleanly. A 12:00 PST meeting becomes 5:00 KST the next day, and 15:00 PST becomes 8:00 KST the next day, which can push Korean participants into early-morning attendance. For remote teams, this often means choosing either late afternoon in Korea or very early morning in Pacific time, depending on which side takes the inconvenience.
PST is a standard-time abbreviation, and its daylight saving counterpart is PDT. KST does not observe daylight saving time, so the relationship changes seasonally whenever Pacific locations switch away from standard time; that is why it is important to distinguish PST vs KST from PDT vs KST when booking meetings, publishing webinar times, or setting customer support hours. PST is used in parts of the United States, Canada, Mexico, and the Philippines, while KST is used in South Korea and North Korea.
When PST and KST Work Best for Scheduling
Because KST is 17 hours ahead, PST evening hours map into the next day in Korea. For example, 18:00 PST = 11:00 KST the next day, which is often more workable for Korean office staff than a PST morning slot. This pattern is useful for cross-border product launches, overnight QA handoffs, and vendor communication where a U.S. team finishes work and a Korean team picks it up the following morning.
PST morning meetings are usually harder on Korea-based participants. A 9:00 PST start becomes 2:00 KST the next day, and 12:00 PST becomes 5:00 KST the next day, which can be too early for many office teams unless the meeting is urgent. If you manage distributed operations in software, semiconductors, e-commerce, or logistics, the converter helps you visually find the least disruptive overlap instead of relying on mental math.
Countries and Business Context for PST and KST
PST appears across countries including the United States, Canada, Mexico, and the Philippines, while KST is used in South Korea and North Korea. In real-world coordination, the most common business pairing is Pacific North America with South Korea, especially in sectors such as electronics manufacturing, gaming, media distribution, automotive supply chains, and international trade.
This time gap matters for more than meetings. Customer support teams may use it to plan follow-the-sun coverage, importers may use it to confirm shipment updates with Korean suppliers, and travelers may use it to understand when contacts in Korea will be awake after landing on the U.S. West Coast. The converter’s visual grid is particularly useful when you need to see not just the hour difference, but whether a proposed time falls in work hours, evening, or overnight on both sides.
Frequently Asked Questions
What is the time difference between PST and KST?
KST is 17 hours ahead of PST. That means a time in Pacific Standard Time will appear in Korea Standard Time on the next day in many common scheduling scenarios, such as 9:00 PST = 2:00 KST the next day and 15:00 PST = 8:00 KST the next day.
Is KST ahead of PST or behind it?
KST is ahead of PST by 17 hours. In practical terms, when a team in California starts its morning, a team in Korea is already in the next calendar day, which is why date mistakes are common when booking calls without a visual comparison tool.
Why does PST to KST often become the next day?
The gap between UTC-8 and UTC+9 is large enough that many PST times roll into the following calendar day in Korea. For example, 12:00 PST = 5:00 KST the next day and 18:00 PST = 11:00 KST the next day, so both the hour and the date need to be checked before sending invites.
Does Korea use daylight saving time like PST regions do?
KST does not observe daylight saving time. PST is specifically the standard-time form of Pacific time, and its daylight saving counterpart is PDT, so seasonal changes on the Pacific side can affect which abbreviation you should use when coordinating with Korea.
What is 9 AM PST in Korea?
9:00 PST = 2:00 KST the next day. This is an important example for companies planning morning standups from the U.S. West Coast, because that meeting lands in the very early hours of the following day in Korea.
What is noon PST in KST?
12:00 PST = 5:00 KST the next day. For business scheduling, that means a lunch-hour meeting in Pacific time becomes an early-morning session in Korea, which may work for urgent coordination but is often outside preferred office hours.
What is 3 PM PST in Korea Standard Time?
15:00 PST = 8:00 KST the next day. This is often more realistic for cross-border collaboration because it places the Korean side in the morning rather than before dawn, making it a better option for project reviews, supplier check-ins, or launch planning.
What is 6 PM PST in KST?
18:00 PST = 11:00 KST the next day. This can be a useful handoff time if a Pacific team wants Korea-based colleagues to pick up tasks during their late morning, especially in industries that run continuous development, support, or operations cycles.
Which countries use PST and KST?
PST is used in Canada, Mexico, the Philippines, and the United States, while KST is used in North Korea and South Korea. For most international business users, the most relevant comparison is usually between Pacific time in North America and Korea time in Seoul-based operations, manufacturing, technology, or media teams.