Offset
The time difference between Jakarta and Adelaide is 2.5 hours.
Jakarta (WIB) is behind Adelaide (ACST).
WIB: UTC+7
ACST: UTC+9:30
Neither Jakarta nor Adelaide is currently observing daylight saving time.
When to schedule
Business-hours overlap: 9 AM–3 PM in Jakarta (11 AM–5 PM in Adelaide).
Both teams are in working hours during this window on weekdays.
Suggested time: 12:00 PM Jakarta (2:30 PM Adelaide).
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Indonesia
- New Year's DayThu, Jan 1
- Good FridayFri, Apr 3
- Easter SundaySun, Apr 5
- Labour DayFri, May 1
- Ascension DayThu, May 14
- Pancasila DayMon, Jun 1
- Independence DayMon, Aug 17
- Christmas DayFri, Dec 25
Australia
- New Year's DayThu, Jan 1
- Australia DayMon, Jan 26
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- Christmas DayFri, Dec 25
- St. Stephen's DayMon, Dec 28
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Jakarta | Adelaide | Day |
|---|---|---|
| 12:00 am | 2:30 am | Same day |
| 1:00 am | 3:30 am | Same day |
| 2:00 am | 4:30 am | Same day |
| 3:00 am | 5:30 am | Same day |
| 4:00 am | 6:30 am | Same day |
| 5:00 am | 7:30 am | Same day |
| 6:00 am | 8:30 am | Same day |
| 7:00 am | 9:30 am | Same day |
| 8:00 am | 10:30 am | Same day |
| 9:00 am | 11:30 am | Same day |
| 10:00 am | 12:30 pm | Same day |
| 11:00 am | 1:30 pm | Same day |
| 12:00 pm | 2:30 pm | Same day |
| 1:00 pm | 3:30 pm | Same day |
| 2:00 pm | 4:30 pm | Same day |
| 3:00 pm | 5:30 pm | Same day |
| 4:00 pm | 6:30 pm | Same day |
| 5:00 pm | 7:30 pm | Same day |
| 6:00 pm | 8:30 pm | Same day |
| 7:00 pm | 9:30 pm | Same day |
| 8:00 pm | 10:30 pm | Same day |
| 9:00 pm | 11:30 pm | Same day |
| 10:00 pm | 12:30 am | +1 day |
| 11:00 pm | 1:30 am | +1 day |
Daylight saving time
Adelaide observes daylight saving time; Jakarta does not. The offset between the two zones changes when Adelaide transitions: on Sunday, October 4, 2026, clocks spring forward from ACST to ACDT.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:59 AM
- Sunset
- 5:46 PM
- Day length
- 11h 46m
- Sunrise
- 7:19 AM
- Sunset
- 5:12 PM
- Day length
- 9h 53m
Daylight overlap: 8h 42m — 5:59 AM–2:42 PM in Jakarta (8:29 AM–5:12 PM in Adelaide). Both locations are in daylight during this window.
Cities in these zones
Other cities in Western Indonesia Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Western Indonesia Time
- CGK
- HLP
- SUB
- BDO
- KNO
- PLM
- SRG
Airports in Australian Central Time
- ADL
Related conversions
Common conversions
- What is 9:00 am Jakarta in Adelaide?
- 9:00 am Jakarta is 11:30 am Adelaide.
- What is 12:00 pm Jakarta in Adelaide?
- 12:00 pm Jakarta is 2:30 pm Adelaide.
- What is 12:30 pm Jakarta in Adelaide?
- 12:30 pm Jakarta is 3:00 pm Adelaide.
- What is 2:00 pm Jakarta in Adelaide?
- 2:00 pm Jakarta is 4:30 pm Adelaide.
- What is 5:00 pm Jakarta in Adelaide?
- 5:00 pm Jakarta is 7:30 pm Adelaide.
- What is 11:30 pm Jakarta in Adelaide?
- 11:30 pm Jakarta is 2:00 am Adelaide, the next day.