Timezone conversion
IST to JST Time — Convert India Standard Time to Japan Standard Time
JST is currently 3h30m ahead of IST. This offset stays the same all year — neither zone shifts for daylight saving in a way that changes it.
JST is currently 3h30m ahead of IST.
IST • GMT+5:30 (UTC+5:30)
10:46 PM
Wednesday, Jul 8
JST • GMT+9 (UTC+9)
2:16 AM
Thursday, Jul 9
Abbreviation disambiguation
IST here means India Standard Time. Note: major collisions: Israel Standard Time (Asia/Jerusalem), Irish Standard Time (Europe/Dublin) — canonical=India, page must disambiguate
Interactive converter
12:00PM
12
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Full IST to JST conversion table
| IST | JST |
|---|---|
| 12:00 AM | 3:30 AM |
| 1:00 AM | 4:30 AM |
| 2:00 AM | 5:30 AM |
| 3:00 AM | 6:30 AM |
| 4:00 AM | 7:30 AM |
| 5:00 AM | 8:30 AM |
| 6:00 AM | 9:30 AM |
| 7:00 AM | 10:30 AM |
| 8:00 AM | 11:30 AM |
| 9:00 AM | 12:30 PM |
| 10:00 AM | 1:30 PM |
| 11:00 AM | 2:30 PM |
| 12:00 PM | 3:30 PM |
| 1:00 PM | 4:30 PM |
| 2:00 PM | 5:30 PM |
| 3:00 PM | 6:30 PM |
| 4:00 PM | 7:30 PM |
| 5:00 PM | 8:30 PM |
| 6:00 PM | 9:30 PM |
| 7:00 PM | 10:30 PM |
| 8:00 PM | 11:30 PM |
| 9:00 PM | 12:30 AM(next day) |
| 10:00 PM | 1:30 AM(next day) |
| 11:00 PM | 2:30 AM(next day) |
Daylight saving and how the gap changes
The IST → 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 IST right now?
- JST is currently 3h30m ahead of IST.
- What is the current IST to JST time difference?
- Right now the gap is 3h30m ahead — JST is 3h30m ahead of IST.
- Does the IST → JST offset change during the year?
- No. Neither India 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 IST observe daylight saving time?
- No — India 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 IST in JST?
- 9:00 AM IST is 12:30 PM JST.
- What time is 12 PM (noon) IST in JST?
- 12:00 PM IST is 3:30 PM JST.
- What time is 5 PM IST in JST?
- 5:00 PM IST is 8:30 PM JST.
- When is the best time to schedule a call between IST and JST?
- The working-hours overlap (09:00–17:00 in both zones) runs roughly 9:00 AM – 1:30 PM IST (≈ 4.5 hours). Mid-morning IST is usually the safest window for a live call.
- What time zone does IST refer to?
- IST refers to India Standard Time (IANA: Asia/Kolkata).
- What time zone does JST refer to?
- JST refers to Japan Standard Time (IANA: Asia/Tokyo).
- Is IST on this page the same as other zones that share the letters "IST"?
- On Clockjumper, IST means India Standard Time. Disambiguation: major collisions: Israel Standard Time (Asia/Jerusalem), Irish Standard Time (Europe/Dublin) — canonical=India, page must disambiguate