It is time for the school holidays again. If you do your commute in Bangkok then you probably noticed that the traffic was less than normal. This is because some schools have already started to break up for the October holidays. This usually takes place every year towards the end of the rainy season. The holiday usually lasts about a month and the students then go back to school in early November.
In Thailand, Thai schools only have two terms. The first term starts in May and runs until early October. There are no half term breaks, only days off for national holidays. Then term two starts in early November and runs until early March. Again no half term breaks, just public holidays. Christmas is a normal school day and new year holiday is usually only 4-5 days. Summer holidays last for about two months.
These dates are for Thai schools only. International schools usually have the same semesters as the country in which curriculum they follow.