Android App Timer Troubleshooting

I'm facing an issue with my Android app's timer. The timer shows incorrect time after running for a while, specifically on newer Android versions.

Skills and experience ideal for this job include:
- Android app development
- Debugging and troubleshooting
- Understanding of timer functionality in apps
- Familiarity with various Android versions, particularly newer ones
- Ability to provide a solution to fix the issue

Your task will be to diagnose the issue and implement a fix so that the timer works correctly across all Android versions.