Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -3855654.615 ms |
| Heart (set every hour) | -57126.068 ms |
| Raw crystal (set once) | +7486.033 ms |
| Raw crystal (set every hour) | +35.139 ms |
| This machine's own clock | -10.498 ms |
| Heart time lost to host stalls | +3863148.870 ms |
| Atomic round trip | +10.978 ms |