Tracking custom workout minutes

Hi there,

Question for the bee hive. When you customize the minutes that it took you to complete a workout - FB workout or custom workout (e.g. hiking) - does it track the custom entered minutes in your statistics or the default minutes. I have a custom workout category for hiking that's set to 120 minutes but sometimes I hike more or sometimes less, so I put the 120 minutes on my calendar but then custom enter the minutes when I hit the complete button. Which length does it track?

Thank you!

Edited