PC time is currently used to calculate KOMs and that is not ideal.
Example: On my climbs today I noticed that my Alpe d‘Zwift expected finish time was very low, off my 12 minutes. I found that my local PC time was frozen, which is obvoisely used to calculate the KOM time. I resynced time and the KOM time completely dissapered. I was able to recreate same behavior some more time — if you want to cheat the KOM time just manuall change your PC time. Here we need another logic/solution.