Timezone conversion
JST to HST Time — Convert Japan Standard Time to Hawaii Standard Time
HST is currently 19 hours behind JST. This offset stays the same all year — neither zone shifts for daylight saving in a way that changes it.
HST is currently 19 hours behind JST.
JST • GMT+9 (UTC+9)
2:18 AM
Thursday, Jul 9
HST • HST (UTC-10)
7:18 AM
Wednesday, Jul 8
Abbreviation disambiguation
HST here means Hawaii Standard Time. Note: no DST
Interactive converter
12:00PM
12
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Full JST to HST conversion table
| JST | HST |
|---|---|
| 12:00 AM | 5:00 AM(previous day) |
| 1:00 AM | 6:00 AM(previous day) |
| 2:00 AM | 7:00 AM(previous day) |
| 3:00 AM | 8:00 AM(previous day) |
| 4:00 AM | 9:00 AM(previous day) |
| 5:00 AM | 10:00 AM(previous day) |
| 6:00 AM | 11:00 AM(previous day) |
| 7:00 AM | 12:00 PM(previous day) |
| 8:00 AM | 1:00 PM(previous day) |
| 9:00 AM | 2:00 PM(previous day) |
| 10:00 AM | 3:00 PM(previous day) |
| 11:00 AM | 4:00 PM(previous day) |
| 12:00 PM | 5:00 PM(previous day) |
| 1:00 PM | 6:00 PM(previous day) |
| 2:00 PM | 7:00 PM(previous day) |
| 3:00 PM | 8:00 PM(previous day) |
| 4:00 PM | 9:00 PM(previous day) |
| 5:00 PM | 10:00 PM(previous day) |
| 6:00 PM | 11:00 PM(previous day) |
| 7:00 PM | 12:00 AM |
| 8:00 PM | 1:00 AM |
| 9:00 PM | 2:00 AM |
| 10:00 PM | 3:00 AM |
| 11:00 PM | 4:00 AM |
Daylight saving and how the gap changes
The JST → HST offset stays constant across the year — neither zone shifts for daylight saving in a way that changes this gap.
Frequently asked questions
- Is HST ahead of or behind JST right now?
- HST is currently 19 hours behind JST.
- What is the current JST to HST time difference?
- Right now the gap is 19 hours behind — HST is 19 hours behind JST.
- Does the JST → HST offset change during the year?
- No. Neither Japan Standard Time nor Hawaii Standard Time shifts for daylight saving in a way that changes this offset — the gap is the same all year.
- Does JST observe daylight saving time?
- No — Japan Standard Time stays at a fixed UTC offset year-round.
- Does HST observe daylight saving time?
- No — Hawaii Standard Time stays at a fixed UTC offset year-round.
- What time is 9 AM JST in HST?
- 9:00 AM JST is 2:00 PM (previous day) HST.
- What time is 12 PM (noon) JST in HST?
- 12:00 PM JST is 5:00 PM (previous day) HST.
- What time is 5 PM JST in HST?
- 5:00 PM JST is 10:00 PM (previous day) HST.
- When is the best time to schedule a call between JST and HST?
- JST and HST have no direct 09:00–17:00 overlap on the same calendar day. Consider early-morning or late-evening slots on one side, or an asynchronous handoff.
- What time zone does JST refer to?
- JST refers to Japan Standard Time (IANA: Asia/Tokyo).
- What time zone does HST refer to?
- HST refers to Hawaii Standard Time (IANA: Pacific/Honolulu).
- Is HST on this page the same as other zones that share the letters "HST"?
- On Clockjumper, HST means Hawaii Standard Time. Disambiguation: no DST