AST to BST Time Converter
Arabia Standard Time → British Summer Time
AST = UTC+3BST = UTC+1
⚠️ AST is ambiguous — on this page it means Arabia Standard Time. It also refers to:
⚠️ BST is ambiguous — on this page it means British Summer Time. It also refers to:
AST (Riyadh) ↔ BST (London)
6h of business hours overlap daily (09:00–17:00)
AST (Riyadh)
BST (London)
Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.
Frequently Asked Questions
What is the difference between ast and bst?
Arabia Standard Time (ast) is UTC+3 and British Summer Time (bst) is UTC+1. The difference between them is 2 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 bst used?
British Summer Time (bst) is used in United Kingdom and surrounding regions. The IANA timezone identifier is Europe/London. Note: bst is ambiguous and may refer to other timezones.
How do I convert ast to bst?
Use the interactive converter above. Drag the time slider to any ast time and the bst 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