Yes, solving previous years question papers can definitely help in improving time management skills. Here's how:

1. Familiarity with the Exam Pattern:
- Solving previous years question papers gives you a clear understanding of the exam pattern, the types of questions asked, and the time required to solve each section.
- This familiarity helps you plan your time effectively during the actual exam and allocate sufficient time to each section.

2. Time Allocation:
- By solving previous years question papers, you get an idea of the time required to solve different types of questions.
- You can analyze the average time taken for each question or section and accordingly allocate time during the exam to ensure you complete all the questions within the given time frame.

3. Speed and Accuracy:
- Practicing previous years question papers helps in improving your speed and accuracy in solving questions.
- As you solve more and more papers, you become familiar with the question patterns, which reduces the time taken to understand and solve similar questions in the future.
- This helps you to solve questions quickly and accurately during the actual exam.

4. Time-saving Techniques:
- While solving previous years question papers, you may come across certain questions or sections that consume a lot of time.
- By practicing these papers, you can identify such time-consuming areas and develop strategies or shortcuts to solve them more efficiently.
- This enables you to save time during the actual exam and utilize it for other questions.

5. Mock Tests:
- Solving previous years question papers simulates the experience of taking a mock test.
- Mock tests help in improving time management skills by creating a similar exam-like environment, allowing you to practice managing your time effectively under pressure.
- They also help you identify your strengths and weaknesses, enabling you to focus on areas that require more attention.

Conclusion:
Solving previous years question papers is an effective strategy to improve time management skills for any exam, including UPSC. It provides familiarity with the exam pattern, helps in time allocation, improves speed and accuracy, teaches time-saving techniques, and offers the experience of taking mock tests. Regular practice of these papers will undoubtedly enhance your time management skills, enabling you to perform better in the actual exam.