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