"ST" can refer to various concepts, but one common interpretation is "Standard Time." This term describes the time established by law or custom in a particular region, which is used for scheduling and coordination. Standard Time is often based on the mean solar time at a specific longitude, helping to synchronize clocks across different areas. Another interpretation of "ST" is "Science and Technology." This field encompasses the study and application of scientific knowledge to develop new technologies and improve existing ones. It plays a crucial role in innovation, impacting various sectors such as healthcare, engineering, and environmental science.