GST to ACST converter

Gulf Time (Dubai, Abu Dhabi, Muscat) to Australian Central Time (Adelaide).

GST4:07 AMSat 31 Oct 2026

→

ACST10:37 AMSat 31 Oct 2026

ACST is 6 h 30 min ahead of GST.

Pick a time in GST

⇄ ACST to GST

9:00 AM GST = 3:30 PM ACST same day

Best time to meet

The best time to meet is between 9:00 AM and 11:00 AM GST, which is 3:30 PM to 5:30 PM ACST. Both sides are then inside 9 AM to 5 PM.

GST to ACST time table

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

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

Quick answers

9:00 AM GST = 3:30 PM ACST
12:00 PM GST = 6:30 PM ACST
3:00 PM GST = 9:30 PM ACST
5:00 PM GST = 11:30 PM ACST
9:00 AM ACST = 2:30 AM GST
12:00 PM ACST = 5:30 AM GST
5:00 PM ACST = 10:30 AM GST

Does the gap change during the year?

Yes, because of daylight saving. Until 3 Apr 2027: ACST is 6 h 30 min ahead of GST. From 3 Apr 2027 to 2 Oct 2027: ACST is 5 h 30 min ahead of GST. From 2 Oct 2027 to 1 Apr 2028: ACST is 6 h 30 min ahead of GST.

GST 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 GST and ACST

GST here means Gulf Time, the clock in Dubai, Abu Dhabi, Muscat. Right now it is UTC+4. 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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