Fitness app showing wrong stopped time

Hello FuglyFay,

Thanks for asking the Apple Support Communities about your stopped time.

1. Were you doing a Fitness+ workout? End and review an Apple Fitness+ workout

2. Or a normal workout? End and review your workout on Apple Watch

3. It may be possible that your workout was ended early inadvertently:

"Swipe right, then tap End.

Turn the Digital Crown to scroll through the results summary, then tap Done at the bottom."

4. Also, check if your watch is worn properly: Wearing your Apple Watch - Apple Support

5. Next, ensure nothing is blocking the sensors and other guidance provided here. The same things that affect the heart rate, affect wrist detection, and other fitness tracking: Monitor your heart rate with Apple Watch - Apple Support

6. Lastly, you may need to calibrate the Apple Watch for improved accuracy. Calibrating your Apple Watch for improved Workout and Activity accuracy - Apple Support

Thanks and have a wonderful day.