Time management is crucial for candidates during the UPSC exam because of the vast syllabus and the limited time allocated for each paper. Effective time management enables candidates to prioritize questions, ensuring they address all parts of the exam without rushing. It helps prevent stress and maintains focus throughout the examination. Developing a strategic approach to answering questions, allocating time judiciously, and practicing under timed conditions during preparation allows candidates to build the stamina needed to perform effectively during the actual exam.