Each clock against atomic time (pool.ntp.org), sampled every 30 s.
| Heart (set once) | -11030743.682 ms |
| Heart (set every hour) | -36879.368 ms |
| Raw crystal (set once) | +14153.490 ms |
| Raw crystal (set every hour) | +32.542 ms |
| This machine's own clock | -0.221 ms |
| Heart time lost to host stalls | +11044872.230 ms |
| Atomic round trip | +12.063 ms |