WIB to IST: WIB is 1 hour 30 minutes ahead of IST
Western Indonesia Time is 1 hour 30 minutes ahead of India Standard Time, on every day of the year. It is 5:59 am WIB in Jakarta and 4:29 am IST in India.
Convert a specific time from WIB to IST
Pick any time and date to convert it both ways. The conversion runs in your browser against the real zone rules, so a date inside a daylight saving period gets that period's offset rather than today's.
What is the time difference between WIB and IST?
India Standard Time is 1 hour 30 minutes behind Western Indonesia Time. To go from WIB to IST you subtract 1 hour 30 minutes. That gap holds on all 365 days of 2026: neither zone moves its clocks.
WIB to IST conversion table
Every hour of Sunday, September 27, 2026 in Jakarta, with the matching reading in India. 2 of the 24 hours land on a different calendar date in India, which is the part people get wrong when they schedule across this pair.
| WIB | WIB 24h | IST | IST 24h | Date |
|---|---|---|---|---|
| 12:00 am | 00:00 | 10:30 pm | 22:30 | the previous day |
| 1:00 am | 01:00 | 11:30 pm | 23:30 | the previous day |
| 2:00 am | 02:00 | 12:30 am | 00:30 | same day |
| 3:00 am | 03:00 | 1:30 am | 01:30 | same day |
| 4:00 am | 04:00 | 2:30 am | 02:30 | same day |
| 5:00 am | 05:00 | 3:30 am | 03:30 | same day |
| 6:00 am | 06:00 | 4:30 am | 04:30 | same day |
| 7:00 am | 07:00 | 5:30 am | 05:30 | same day |
| 8:00 am | 08:00 | 6:30 am | 06:30 | same day |
| 9:00 am | 09:00 | 7:30 am | 07:30 | same day |
| 10:00 am | 10:00 | 8:30 am | 08:30 | same day |
| 11:00 am | 11:00 | 9:30 am | 09:30 | same day |
| 12:00 pm | 12:00 | 10:30 am | 10:30 | same day |
| 1:00 pm | 13:00 | 11:30 am | 11:30 | same day |
| 2:00 pm | 14:00 | 12:30 pm | 12:30 | same day |
| 3:00 pm | 15:00 | 1:30 pm | 13:30 | same day |
| 4:00 pm | 16:00 | 2:30 pm | 14:30 | same day |
| 5:00 pm | 17:00 | 3:30 pm | 15:30 | same day |
| 6:00 pm | 18:00 | 4:30 pm | 16:30 | same day |
| 7:00 pm | 19:00 | 5:30 pm | 17:30 | same day |
| 8:00 pm | 20:00 | 6:30 pm | 18:30 | same day |
| 9:00 pm | 21:00 | 7:30 pm | 19:30 | same day |
| 10:00 pm | 22:00 | 8:30 pm | 20:30 | same day |
| 11:00 pm | 23:00 | 9:30 pm | 21:30 | same day |
What are the best hours to schedule a call between WIB and IST?
6 hours of the standard 9:00 am to 5:00 pm working day line up in both zones, from 11:00 am WIB to 5:00 pm WIB. In India that window reads 9:30 am to 3:30 pm. Outside it, one side is either not yet at their desk or already gone.
| WIB | IST | Working hours | Note |
|---|---|---|---|
| 11:00 am | 9:30 am | both sides | mid morning in Jakarta, mid morning in India |
| 12:00 pm | 10:30 am | both sides | noon in Jakarta, mid morning in India |
| 1:00 pm | 11:30 am | both sides | afternoon in Jakarta, mid morning in India |
| 2:00 pm | 12:30 pm | both sides | afternoon in Jakarta, noon in India |
| 3:00 pm | 1:30 pm | both sides | afternoon in Jakarta, afternoon in India |
| 4:00 pm | 2:30 pm | both sides | afternoon in Jakarta, afternoon in India |
Does daylight saving change WIB to IST?
Western Indonesia Time does not move its clocks at all, so its UTC+7 offset holds every day of the year.
India Standard Time does not move its clocks at all, so its UTC+5:30 offset holds every day of the year.
Is WIB ahead of or behind IST?
WIB is ahead of IST by 1 hour 30 minutes: when it is 12:00 pm in Jakarta, it is 10:30 am in India. Neither Western Indonesia Time nor India Standard Time observes daylight saving, so the abbreviations never change and the gap between them is fixed.
Western Indonesia Time covers Jakarta, Bandung and Medan, the most populous of the three Indonesian zones. India Standard Time covers the whole of India on a single half hour offset. The identifiers behind them are Asia/Jakarta and Asia/Kolkata, which is what any calendar or scheduling system should be storing rather than a fixed number of hours.
Questions
- What is WIB in IST?
- WIB is 1 hour 30 minutes ahead of IST. 9:00 am WIB is 7:30 am IST.
- How many hours ahead is IST of WIB?
- IST is 1 hour 30 minutes behind WIB.
- What time is it in India right now?
- 4:29 am IST on Sunday, September 27, 2026.
- When can Jakarta and India meet during working hours?
- Between 11:00 am and 5:00 pm WIB, which is 9:30 am to 3:30 pm IST.
- Does this account for daylight saving?
- Yes. Every reading is computed from the IANA database for the actual date, so WIB and IST are the abbreviations genuinely in force today rather than a fixed assumption.
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