WIB to ACST converter

Western Indonesia Time (Jakarta) to Australian Central Time (Adelaide).

WIB7:07 AMSat 31 Oct 2026

→

ACST10:37 AMSat 31 Oct 2026

ACST is 3 h 30 min ahead of WIB.

Pick a time in WIB

⇄ ACST to WIB

9:00 AM WIB = 12:30 PM ACST same day

Best time to meet

The best time to meet is between 9:00 AM and 2:00 PM WIB, which is 12:30 PM to 5:30 PM ACST. Both sides are then inside 9 AM to 5 PM.

WIB to ACST time table

For 31 Oct 2026. Green rows: both sides between 9 AM and 5 PM.

WIB	ACST
12:00 AM WIB	3:30 AM ACST
1:00 AM WIB	4:30 AM ACST
2:00 AM WIB	5:30 AM ACST
3:00 AM WIB	6:30 AM ACST
4:00 AM WIB	7:30 AM ACST
5:00 AM WIB	8:30 AM ACST
6:00 AM WIB	9:30 AM ACST
7:00 AM WIB	10:30 AM ACST
8:00 AM WIB	11:30 AM ACST
9:00 AM WIB	12:30 PM ACST
10:00 AM WIB	1:30 PM ACST
11:00 AM WIB	2:30 PM ACST
12:00 PM WIB	3:30 PM ACST
1:00 PM WIB	4:30 PM ACST
2:00 PM WIB	5:30 PM ACST
3:00 PM WIB	6:30 PM ACST
4:00 PM WIB	7:30 PM ACST
5:00 PM WIB	8:30 PM ACST
6:00 PM WIB	9:30 PM ACST
7:00 PM WIB	10:30 PM ACST
8:00 PM WIB	11:30 PM ACST
9:00 PM WIB	12:30 AM ACST next day
10:00 PM WIB	1:30 AM ACST next day
11:00 PM WIB	2:30 AM ACST next day

Quick answers

9:00 AM WIB = 12:30 PM ACST
12:00 PM WIB = 3:30 PM ACST
3:00 PM WIB = 6:30 PM ACST
5:00 PM WIB = 8:30 PM ACST
9:00 AM ACST = 5:30 AM WIB
12:00 PM ACST = 8:30 AM WIB
5:00 PM ACST = 1:30 PM WIB

Does the gap change during the year?

Yes, because of daylight saving. Until 3 Apr 2027: ACST is 3 h 30 min ahead of WIB. From 3 Apr 2027 to 2 Oct 2027: ACST is 2 h 30 min ahead of WIB. From 2 Oct 2027 to 1 Apr 2028: ACST is 3 h 30 min ahead of WIB.

WIB does not change its clocks. ACST next changes its clocks on 4 Apr 2027 (back 1 h, to UTC+9:30), then on 3 Oct 2027 (forward 1 h, to UTC+10:30).

About WIB and ACST

WIB here means Western Indonesia Time, the clock in Jakarta. Right now it is UTC+7. It has no daylight saving.

ACST here means Australian Central Time, the clock in Adelaide. Right now it is UTC+10:30. Strictly, ACST is the winter name; in summer these places use ACDT. This page follows their real clock all year.

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