AST to GST Time Converter
Arabia Standard Time → Gulf Standard Time
AST = UTC+3GST = UTC+4
⚠️ AST is ambiguous — on this page it means Arabia Standard Time. It also refers to:
AST (Riyadh) ↔ GST (Dubai)
7h of business hours overlap daily (09:00–17:00)
AST (Riyadh)
GST (Dubai)
Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.
Frequently Asked Questions
What is the difference between ast and gst?
Arabia Standard Time (ast) is UTC+3 and Gulf Standard Time (gst) is UTC+4. The difference between them is 1 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 gst used?
Gulf Standard Time (gst) is used in United Arab Emirates and surrounding regions. The IANA timezone identifier is Asia/Dubai.
How do I convert ast to gst?
Use the interactive converter above. Drag the time slider to any ast time and the gst 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