BST to AST Time Converter
British Summer Time → Arabia Standard Time
BST = UTC+1AST = UTC+3
⚠️ BST is ambiguous — on this page it means British Summer Time. It also refers to:
⚠️ AST is ambiguous — on this page it means Arabia Standard Time. It also refers to:
BST (London) ↔ AST (Riyadh)
6h of business hours overlap daily (09:00–17:00)
BST (London)
AST (Riyadh)
Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.
Frequently Asked Questions
What is the difference between bst and ast?
British Summer Time (bst) is UTC+1 and Arabia Standard Time (ast) is UTC+3. The difference between them is 2 hours.
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.
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.
How do I convert bst to ast?
Use the interactive converter above. Drag the time slider to any bst time and the ast equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
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