Well, Indonesia is a tropical country. So, Sun shines every single day. And it's constant.
Indonesia's got normally 12 hours daylight.
Has to do with the earths tilt and whether you live in the northern or southern hemisphere.
The amount of daylight in a "24-hour" day actually varies due to a combination of the Earth's elliptical orbit around the sun and the tilt of the Earth's axis. The further north or south you are from...
15
Their is 11 because 12:00 A.M. to 12:00 P.M. is 11 hours
Longest day (midsummer): 17 hours on June 21 Shortest day (midwinter): 7 hours on Dec 21