Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -7770849.955 ms |
| Heart (set every hour) | -59425.367 ms |
| Raw crystal (set once) | +11203.040 ms |
| Raw crystal (set every hour) | +32.386 ms |
| This machine's own clock | +1.135 ms |
| Heart time lost to host stalls | +7782042.123 ms |
| Atomic round trip | +11.425 ms |