The term 'ตั้งแต่...จน (dtâng dtàe...jon)' is widely used in Thai to indicate the start and end of a period in time or space, much like the English phrase 'from... until...'. It is typically placed at the beginning and middle of sentences, respectively, to denote the beginning and end of a period or location. The term 'ตั้งแต่' precedes the time or position indicating the starting point and 'จน' is followed with the time or position representing the endpoint.