Bucharest is 6 hours behind Kuala Lumpur
Best overlap: 2:00 PM to 6:00 PM in Kuala Lumpur is 8:00 AM to 12:00 PM in Bucharest.
Aim for 2:00 PM to 6:00 PM Kuala Lumpur time — that's 8:00 AM to 12:00 PM over in Bucharest. Bucharest is 6 hours behind Kuala Lumpur, which gives you a solid 4-hour window. Book earlier in it and neither side is rushing. Finally, Bucharest 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.