Transit visa is not required for passengers arriving and departing at Kuala Lumpur International Airport (KUL), provided travelling with Air Asia or Malaysia Airlines. Maximum stay of 120 hours.Transit visa is required if transiting within a period greater than 24 hours.
飞机落地---到登机口---开机舱门---下飞机---办过境签---入境---提行李---办登机牌---安检---到登机口,这些步骤都需要时间,自己加吧
http://www.airasia.com/my/zh/our-connections/connecting-flights.page