Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -212225.650 ms |
| Heart (set every hour) | -2464.466 ms |
| Raw crystal (set once) | +920.047 ms |
| Raw crystal (set every hour) | +11.049 ms |
| This machine's own clock | +8.297 ms |
| Heart time lost to host stalls | +213145.731 ms |
| Atomic round trip | +8.490 ms |