Each clock against atomic time (pool.ntp.org), sampled every 30 s.
| Heart (set once) | -286640.407 ms |
| Heart (set every hour) | -11784.052 ms |
| Raw crystal (set once) | +613.467 ms |
| Raw crystal (set every hour) | +36.239 ms |
| This machine's own clock | -1.058 ms |
| Heart time lost to host stalls | +287253.867 ms |
| Atomic round trip | +3.434 ms |