JST to HST time converter

HST is 19 hours behind JST. When it is 9:00 AM in JST, it is 2:00 PM (Fri, Oct 16) in HST.

JST UTC+9

Saturday, October 17, 2026

HST UTC-10

Friday, October 16, 2026

JST
Japan Standard Time
Sat, Oct 17
UTC+9
HST
Hawaii-Aleutian Standard Time
Fri, Oct 16
UTC-10-19h
Finding your time zone…
Shared working hours (9:00–18:00)

JST to HST conversion table

Every hour of today in JST and the matching time in HST. Light rows are typical working hours (9:00–18:00).

JSTHST
12:00 AM5:00 AM−1 day
1:00 AM6:00 AM−1 day
2:00 AM7:00 AM−1 day
3:00 AM8:00 AM−1 day
4:00 AM9:00 AM−1 day
5:00 AM10:00 AM−1 day
6:00 AM11:00 AM−1 day
7:00 AM12:00 PM−1 day
8:00 AM1:00 PM−1 day
9:00 AM2:00 PM−1 day
10:00 AM3:00 PM−1 day
11:00 AM4:00 PM−1 day
12:00 PM5:00 PM−1 day
1:00 PM6:00 PM−1 day
2:00 PM7:00 PM−1 day
3:00 PM8:00 PM−1 day
4:00 PM9:00 PM−1 day
5:00 PM10:00 PM−1 day
6:00 PM11:00 PM−1 day
7:00 PM12:00 AM
8:00 PM1:00 AM
9:00 PM2:00 AM
10:00 PM3:00 AM
11:00 PM4:00 AM

Best time to call or meet

Both sides are at work from 9:00 AM – 1:00 PM in JST (2:00 PM – 6:00 PM in HST).

Daylight saving time and the difference

The difference stays 19 hours all year.

More conversions

HST to JSTJST to UTCJST to GMTJST to ESTJST to CSTJST to MSTJST to PSTJST to CETJST to MSKJST to GSTJST to PKTJST to ISTJST to SGT
UTC to HSTGMT to HSTEST to HSTCST to HSTMST to HSTPST to HSTCET to HSTMSK to HSTGST to HSTPKT to HSTIST to HSTSGT to HST

Questions and answers

What is the time difference between JST and HST?

HST is 19 hours behind JST.

What time is it in HST when it is 9 AM in JST?

When it is 9:00 AM in JST, it is 2:00 PM (Fri, Oct 16) in HST.

When is the best time to call HST from JST?

Both sides are at work from 9:00 AM – 1:00 PM in JST (2:00 PM – 6:00 PM in HST).

Does the time difference between JST and HST change?

No. The difference stays 19 hours all year.