PST to KST Time Converter

When it is 9:00 AM PST, it is 1:00 AM KST. Korea Standard Time (KST, UTC+9) is 17 hours ahead of Pacific Standard Time (PST, UTC-8). There is no full 9–5 overlap between PST and KST — teams typically rotate early or late meetings.

PST to KST Conversion Table

Major Cities Using PST and KST

Pacific Standard Time (PST): Los Angeles, San Francisco, Seattle, Vancouver.

Korea Standard Time (KST): Seoul, Busan, Incheon.

How many hours between PST and KST?

PST is UTC-8 and KST is UTC+9, a difference of 17 hours. KST is ahead of PST. This difference can shift by an hour in either direction during Daylight Saving Time transitions — if one zone observes DST and the other doesn't, the offset narrows or widens for part of the year.

Business Hours Overlap: PST ↔ KST

Assuming a 9:00 AM – 5:00 PM workday on each side, there is no full 9–5 overlap between pst and kst — teams typically rotate early or late meetings. To visualize this instantly for any pair of cities, use the visual meeting planner or the timezone overlap finder — both highlight the green overlap window on a live timeline.

Does PST observe Daylight Saving Time?

Pacific Standard Time (PST) is based on the America/Los_Angeles IANA timezone. DST observance depends on the jurisdiction — for example, most of the continental US switches between standard and daylight time, while India, Japan, and most of Southeast Asia do not observe DST at all. WorldClock.lol uses the authoritative IANA timezone database, so every conversion automatically accounts for the correct DST rules on the date you're converting.

When is 9 AM PST in KST?

When it is 9:00 AM in Pacific Standard Time (PST, UTC-8), it is 1:00 AM in Korea Standard Time (KST). For other times of day, scan the conversion table above or drop into the interactive converter to pick an exact minute. The converter handles both standard and daylight variants correctly.

How to Use This PST to KST Converter

1. Type or drag any time in the PST input above — the KST equivalent updates instantly.
2. Check the day indicator. When the converted time crosses midnight, the tool shows +1 day or −1 day so you don't book a meeting on the wrong date.
3. Copy the shareable URL to send the specific conversion to a colleague — the link preserves your exact selection.
4. Switch directions by swapping the input zones, or open KST to PST for the reverse.

Related PST Converters

• PST to EST
• PST to GMT
• PST to UTC
• PST to IST
• PST to JST
• PST to CET

Related KST Converters

• EST to KST
• GMT to KST
• UTC to KST
• IST to KST
• JST to KST
• CET to KST

More Time Tools

• All Time Zone Converters — browse every supported pair
• About PST (Pacific Standard Time) — current time, cities, DST rules
• About KST (Korea Standard Time) — current time, cities, DST rules
• Meeting Planner — find the best time for a multi-city meeting
• Best Time to Call — optimal calling windows between any two cities
• UTC Time Now — the reference point for every conversion
• DST Schedule 2026 — every daylight-saving transition this year