I live in Indonesia(UTC+7), and yeah it's my habit to keep awake at night. This became worst when I stopped my study in college, sleep at 5 or 6 AM and wake up at 10~12 AM. But sometimes I take a small nap.
Since I moved to my sister's house, I usually have a free time started at afternoon or night(depending on the work) since I'm doing a lot of stuffs like helping my sister's business(she is selling cakes online) like doing a delivery and buying some ingredients for her cake or taking care of her children.