HST to AST

Hawaii Standard Time

Hawaii Standard Time (HST)

HST is 10 hours behind Universal Time (UTC-1)

↑ ↓

Atlantic Standard Time

Atlantic Standard Time (AST)

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

HST to AST Time Conversion

When it is 12:00 PM in HST, it is 6:00 PM in AST.

📞The best time to schedule a call is between 9 AM and 11 AM in HST, which is between 3 PM and 5 PM in AST.

Time difference between HST and AST

HST is 6 hours behind AST.

🕐 Add 6 hours to HST time to get AST time.

HST uses 10 hours behind Universal Time (UTC-1) and AST uses 4 hours behind Universal Time (UTC-4).

HST to AST time conversion chart (24 hours)

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

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

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

HST to AST - Frequently Asked Questions

Q

What is the time difference between HST and AST?

A

HST is 6 hours behind AST.

Q

Is HST ahead of or behind AST?

A

HST is behind AST by 6 hours.

Q

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

A

It is 3:00 PM in AST.

Convert HST Time to Popular Time Zones

Convert Time in Popular Time Zones to AST