Kuala Lumpur is 6 hours ahead of Madrid
Best overlap: 8:00 AM to 12:00 PM in Madrid is 2:00 PM to 6:00 PM in Kuala Lumpur.
Aim for 8:00 AM to 12:00 PM Madrid time — that's 2:00 PM to 6:00 PM over in Kuala Lumpur. Kuala Lumpur is 6 hours ahead of Madrid, which gives you a solid 4-hour window. Book earlier in it and neither side is rushing. Keep an eye on the calendar — Madrid observes daylight saving and Kuala Lumpur doesn't, which nudges this window by an hour twice a year.