The distance between Station A and bilibili is 360 kilometers. At the same time, buses and trucks set off from Station A for bilibili, with a speed of 60 kilometers per hour and a speed of 40 kilometers per hour. It takes 360/60=4 hours for the bus to reach bilibili.

At this time, the truck reached a distance of 4 * 40 =160km and 360-160 = 200km from bilibili.

Now it takes 200/(60+40)=2 hours for two cars to meet.

It takes 2+4=6 hours from departure to meeting.