ADT to AST

Atlantic Daylight Time

Atlantic Daylight Time (ADT)

ADT is 3 hours behind Universal Time (UTC-3)

↑ ↓

Atlantic Standard Time

Atlantic Standard Time (AST)

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

ADT to AST Time Conversion

When it is 12:00 PM in ADT, it is 11:00 AM in AST.

📞The best time to schedule a call is between 10 AM and 5 PM in ADT, which is between 9 AM and 4 PM in AST.

Time difference between ADT and AST

ADT is 1 hour ahead of AST.

🕐 Subtract 1 hour from ADT time to get AST time.

ADT uses 3 hours behind Universal Time (UTC-3) and AST uses 4 hours behind Universal Time (UTC-4).

ADT to AST time conversion chart (24 hours)

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

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

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

ADT to AST - Frequently Asked Questions

Q

What is the time difference between ADT and AST?

A

ADT is 1 hour ahead of AST.

Q

Is ADT ahead of or behind AST?

A

ADT is ahead of AST by 1 hour.

Q

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

A

It is 8:00 AM in AST.

Convert ADT Time to Popular Time Zones

Convert Time in Popular Time Zones to AST