IST to JST Converter
India Standard Time (UTC+5:30) → Japan Standard Time (UTC+9:00)
IST (India Standard Time)
06:14:55 PM
Wed, Mar 18, 2026
UTC+5:30
3 hours 30 minutes ahead
JST (Japan Standard Time)
09:44:55 PM
Wed, Mar 18, 2026
UTC+9
Time Difference
- IST offset
- UTC+5:30
- JST offset
- UTC+9:00
- Difference
- 3 hours 30 minutes ahead
- Best overlap
- 9 AM–12 PM / 1 PM–4 PM
Time Comparison
IST (India Standard Time)India Standard Time6:14 PM
JST (Japan Standard Time)Japan Standard Time9:44 PM
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
NOW6pm
7pm
8pm
9pm
10pm
11pm
MAR 183am
4am
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
MAR 1912am+1d
1am+1d
2am+1d
BusinessMorning/EveningDawn/DuskNight
24-Hour Conversion Table
Based on standard time (Jan 15 reference). Actual times may differ during DST transitions.
| IST | JST |
|---|---|
| 5:30 AM | 9:00 AM |
| 6:30 AM | 10:00 AM |
| 7:30 AM | 11:00 AM |
| 8:30 AM | 12:00 PM |
| 9:30 AM | 1:00 PM |
| 10:30 AM | 2:00 PM |
| 11:30 AM | 3:00 PM |
| 12:30 PM | 4:00 PM |
| 1:30 PM | 5:00 PM |
| 2:30 PM | 6:00 PM |
| 3:30 PM | 7:00 PM |
| 4:30 PM | 8:00 PM |
| 5:30 PM | 9:00 PM |
| 6:30 PM | 10:00 PM |
| 7:30 PM | 11:00 PM |
| 8:30 PM | 12:00 AM+1 day |
| 9:30 PM | 1:00 AM+1 day |
| 10:30 PM | 2:00 AM+1 day |
| 11:30 PM | 3:00 AM+1 day |
| 12:30 AM | 4:00 AM |
| 1:30 AM | 5:00 AM |
| 2:30 AM | 6:00 AM |
| 3:30 AM | 7:00 AM |
| 4:30 AM | 8:00 AM |
Highlighted rows indicate business hours (9 AM–5 PM) in IST.
What is IST?
- Full name
- India Standard Time
- UTC offset
- UTC+5:30
- IANA timezone
- Asia/Kolkata
- Observes DST
- No
What is JST?
- Full name
- Japan Standard Time
- UTC offset
- UTC+9:00
- IANA timezone
- Asia/Tokyo
- Observes DST
- No
Countries observing IST
- •India
- •Sri Lanka
Countries observing JST
- •Japan