AST to KST Converter
Korea Time (KST) is 12 hours ahead of Atlantic Time (AST / ADT).
Quick Reference
- Atlantic Time
- ADT (GMT-3)
AST starts on Nov 1, 2026
- Korea Time
- KST (GMT+9)
No Daylight Saving Time
Cities in AST
Cities in KST
Frequently Asked Questions
- What is the difference between AST and KST?
- KST is 12 hours ahead of AST.
- How do I convert AST to KST?
- To convert from AST to KST, add 12 hours. Use the interactive converter on this page to convert specific times.
- What cities are in AST and KST?
- Cities in AST include Halifax, Charlottetown. Cities in KST include Seoul, Busan, Incheon, Daegu, Daejeon.