Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -2090918.994 ms |
| Heart (set every hour) | -32168.752 ms |
| Raw crystal (set once) | +6043.545 ms |
| Raw crystal (set every hour) | +30.449 ms |
| This machine's own clock | -2.818 ms |
| Heart time lost to host stalls | +2096969.426 ms |
| Atomic round trip | +6.849 ms |