IST to WIB Converter
WIB is 1.5 hours ahead of IST.
IST
Thursday, October 22, 2026
India Standard Time · UTC+5:30
WIB
Thursday, October 22, 2026
Western Indonesian Time · UTC+7
Convert IST to WIB
IST 17:38 = WIB 19:08
IST to WIB time chart, hour by hour
| IST | WIB |
|---|
| 00:00 | 01:30 |
| 01:00 | 02:30 |
| 02:00 | 03:30 |
| 03:00 | 04:30 |
| 04:00 | 05:30 |
| 05:00 | 06:30 |
| 06:00 | 07:30 |
| 07:00 | 08:30 |
| 08:00 | 09:30 |
| 09:00 | 10:30 |
| 10:00 | 11:30 |
| 11:00 | 12:30 |
| 12:00 | 13:30 |
| 13:00 | 14:30 |
| 14:00 | 15:30 |
| 15:00 | 16:30 |
| 16:00 | 17:30 |
| 17:00 | 18:30 |
| 18:00 | 19:30 |
| 19:00 | 20:30 |
| 20:00 | 21:30 |
| 21:00 | 22:30 |
| 22:00 | 23:30 |
| 23:00 | 00:30 +1 day |
Highlighted rows fall within 09:00–18:00 in both places: 8 shared working hours.
How many hours is IST behind WIB?
As abbreviations, WIB is always 1.5 hours ahead of IST: IST is UTC+5:30 and WIB is UTC+7. To convert, add 1.5 hours.
Does the IST to WIB time difference change?
No. Wib is 1.5 hours ahead of ist all year, because neither place changes its clocks.
Calling hours for IST and WIB
- When WIB is 1.5 hours ahead of IST: 7 shared office hours, 09:00 to 16:00 in IST (10:30 to 17:30 in WIB).
Frequently asked questions about IST and WIB time
How many hours ahead is WIB of IST?
WIB (UTC+7) is 1.5 hours ahead of IST (UTC+5:30).
Does the time difference between IST and WIB change during the year?
No, it stays 1.5 hours ahead all year because neither place changes its clocks.