Kuala Lumpur is 1.5 hours behind Adelaide
Best overlap: 9:30 AM to 6:30 PM in Adelaide is 8:00 AM to 5:00 PM in Kuala Lumpur.
Keep meetings inside 9:30 AM to 6:30 PM in Adelaide — that maps to 8:00 AM to 5:00 PM in Kuala Lumpur. Despite the 1.5-hour difference, a 9-hour overlap keeps things simple and gives both teams breathing room. Finally, Adelaide observes daylight saving and Kuala Lumpur doesn't, so this window shifts by an hour for part of the year — recheck it each spring and autumn.