BST's a three letter acronym that may refer to: Time zones Bangladesh Standard Time, the standard time zone for Bangladesh British Summer Time, the standard time zone for the British Isles, known as British Standard Time between 1968 and 1971 Burma Standard Time, the standard time zone for Burma (Myanmar) Science, computing and mathematics Bibliographic style file (.bst), used with BibTeX Binary search tree, a data structure Browser-side templating, a templating strategy for web applicati… (More on Bst)