AST to HKT Time Converter
Arabia Standard Time → Hong Kong Time
AST = UTC+3HKT = UTC+8
⚠️ AST is ambiguous — on this page it means Arabia Standard Time. It also refers to:
AST (Riyadh) ↔ HKT (Hong Kong)
3h of business hours overlap daily (09:00–17:00)
AST (Riyadh)
HKT (Hong Kong)
Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.
Frequently Asked Questions
What is the difference between ast and hkt?
Arabia Standard Time (ast) is UTC+3 and Hong Kong Time (hkt) is UTC+8. The difference between them is 5 hours.
Where is ast used?
Arabia Standard Time (ast) is used in Saudi Arabia and surrounding regions. The IANA timezone identifier is Asia/Riyadh. Note: ast is ambiguous and may refer to other timezones.
Where is hkt used?
Hong Kong Time (hkt) is used in Hong Kong and surrounding regions. The IANA timezone identifier is Asia/Hong_Kong.
How do I convert ast to hkt?
Use the interactive converter above. Drag the time slider to any ast time and the hkt equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
Popular AST conversions
AST → LondonAST → New YorkAST → TokyoAST → DubaiAST → SydneyAST → ParisAST → BerlinAST → SingaporeAST → Los AngelesAST → Toronto