Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -2773581.384 ms |
| Heart (set every hour) | -19313.500 ms |
| Raw crystal (set once) | +6900.348 ms |
| Raw crystal (set every hour) | +25.370 ms |
| This machine's own clock | +1.688 ms |
| Heart time lost to host stalls | +2780491.663 ms |
| Atomic round trip | +6.897 ms |