Convert KST to AST — Time Difference Between Korea Standard Time and Arabia Standard Time
Drag the slider or click the time display to type a specific hour and instantly convert KST to AST — Arabia Standard Time is 6 hours behind Korea Standard Time. Scroll down to browse the full KST to AST conversion table, check what time 9 AM, 10 AM, 11 AM, or 12 PM in Seoul is in Riyadh, and use the date picker to compare times on any day for accurate scheduling.
KST
Korea Standard Time
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AST
Arabia Standard Time
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KST to AST Time Zone Difference — Hour-by-Hour Conversion Table
Scan each row to find what time any hour in Seoul is in Riyadh — tap the arrows to jump between days, click "Today" to reset, and use the color-coded bands to quickly spot overlapping work hours, early mornings, and late nights at a glance.
| KST (Seoul) | AST (Riyadh) |
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How to Convert KST to AST
Drag the slider on the KST timeline to pick your time — the AST time updates instantly. You can also click the time display to type a specific hour or pick one from the 15-minute interval dropdown, and use the date picker to check a different day.
What Is the Time Difference Between KST and AST?
Arabia Standard Time (AST) is 6 hours behind Korea Standard Time (KST). To convert, subtract 6 hours — for example, 9:00 AM KST is 3:00 AM AST.
What Time Is It Now in Seoul?
What Time Is It Now in Riyadh?
KST to AST Quick Reference
KST to AST Meeting Planner
Use the color-coded table above to find overlapping work hours between Seoul and Riyadh. Amber rows mark daytime hours — pick a slot that falls in amber on both sides for a meeting that works for everyone.
Why Trust This KST to AST Converter?
Timezoney uses the IANA Time Zone Database — the same source that powers your phone and computer — so every conversion handles daylight saving transitions and half-hour offsets automatically.
Korea Standard Time
- Abbreviation
- KST
- UTC Offset
- UTC+9:00
- City
- Seoul
- Country
- South Korea
Arabia Standard Time
- Abbreviation
- AST
- UTC Offset
- UTC+3:00
- City
- Riyadh
- Country
- Saudi Arabia