Each clock against atomic time (time.google.com), sampled every 30 s.
| Heart (set once) | -10524568.853 ms |
| Heart (set every hour) | -37811.613 ms |
| Raw crystal (set once) | +13390.647 ms |
| Raw crystal (set every hour) | +24.272 ms |
| This machine's own clock | +1.373 ms |
| Heart time lost to host stalls | +10537937.431 ms |
| Atomic round trip | +13.312 ms |