HST to JST

Hawaii Standard Time

Hawaii Standard Time (HST)

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

↑ ↓

Japan Standard Time

Japan Standard Time (JST)

JST is 9 hours ahead of Universal Time (UTC+9)

HST to JST Time Conversion

When it is 12:00 PM in HST, it is 7:00 AM the next day in JST.

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

Time difference between HST and JST

HST is 19 hours behind JST.

🕐 Add 19 hours to HST time to get JST time.

HST uses 10 hours behind Universal Time (UTC-1) and JST uses 9 hours ahead of Universal Time (UTC+9).

HST to JST time conversion chart (24 hours)

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

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

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

HST to JST - Frequently Asked Questions

Q

What is the time difference between HST and JST?

A

HST is 19 hours behind JST.

Q

Is HST ahead of or behind JST?

A

HST is behind JST by 19 hours.

Q

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

A

It is 4:00 AM the next day in JST.

Convert HST Time to Popular Time Zones

Convert Time in Popular Time Zones to JST