BST to AST

British Summer Time

British Summer Time (BST)

BST is 1 hour ahead of Universal Time (UTC+1)

↑ ↓

Atlantic Standard Time

Atlantic Standard Time (AST)

AST is 4 hours behind Universal Time (UTC-4)

BST to AST Time Conversion

When it is 12:00 PM in BST, it is 7:00 AM in AST.

📞The best time to schedule a call is between 2 PM and 5 PM in BST, which is between 9 AM and 12 PM in AST.

Time difference between BST and AST

BST is 5 hours ahead of AST.

🕐 Subtract 5 hours from BST time to get AST time.

BST uses 1 hour ahead of Universal Time (UTC+1) and AST uses 4 hours behind Universal Time (UTC-4).

BST to AST time conversion chart (24 hours)

Highlighted rows are overlapping 9-to-5 business hours – the best time to schedule a call between BST and AST.

BST Time		AST Time
12 AM BST Time	↔	7 PM AST Time
1 AM BST Time	↔	8 PM AST Time
2 AM BST Time	↔	9 PM AST Time
3 AM BST Time	↔	10 PM AST Time
4 AM BST Time	↔	11 PM AST Time
5 AM BST Time	↔	12 AM AST Time
6 AM BST Time	↔	1 AM AST Time
7 AM BST Time	↔	2 AM AST Time
8 AM BST Time	↔	3 AM AST Time
9 AM BST Time	↔	4 AM AST Time
10 AM BST Time	↔	5 AM AST Time
11 AM BST Time	↔	6 AM AST Time

BST Time		AST Time
12 PM BST Time	↔	7 AM AST Time
1 PM BST Time	↔	8 AM AST Time
2 PM BST Time	↔	9 AM AST Time
3 PM BST Time	↔	10 AM AST Time
4 PM BST Time	↔	11 AM AST Time
5 PM BST Time	↔	12 PM AST Time
6 PM BST Time	↔	1 PM AST Time
7 PM BST Time	↔	2 PM AST Time
8 PM BST Time	↔	3 PM AST Time
9 PM BST Time	↔	4 PM AST Time
10 PM BST Time	↔	5 PM AST Time
11 PM BST Time	↔	6 PM AST Time

BST to AST - Frequently Asked Questions

Q

What is the time difference between BST and AST?

A

BST is 5 hours ahead of AST.

Q

Is BST ahead of or behind AST?

A

BST is ahead of AST by 5 hours.

Q

When it is 9:00 AM in BST, what time is it in AST?

A

It is 4:00 AM in AST.

Convert BST Time to Popular Time Zones

Convert Time in Popular Time Zones to AST