Indonesian can apply 24 hours free transit visa?

Mr B, your itinerary will be definitely covered by 24 hour visa free transit and you do not need any kind of visa. Also, when you land in Xiamen, the first thing that you will do is to approach 24/144 hour visa free transit where you will apply for a temporary entry permit because your layover is a very long one. Here you will present your flight tickets and your hotel booking confirmation if you have one. After a short check you will be granted a permit and then you will head to the immigration and to the city to enjoy some time on your own. You should just have in mind that your layover cannot exceed 24 hours even for just one minute based on scheduled arrival/departure.

Have a nice journey and a perfect visit to Xiamen.