Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -9547726.170 ms |
| Heart (set every hour) | -39862.397 ms |
| Raw crystal (set once) | +12161.663 ms |
| Raw crystal (set every hour) | +25.893 ms |
| This machine's own clock | +0.840 ms |
| Heart time lost to host stalls | +9559872.212 ms |
| Atomic round trip | +4.434 ms |