Each clock against atomic time (pool.ntp.org), sampled every 30 s.
| Heart (set once) | -4939331.254 ms |
| Heart (set every hour) | -28032.494 ms |
| Raw crystal (set once) | +8723.841 ms |
| Raw crystal (set every hour) | +34.246 ms |
| This machine's own clock | -1.179 ms |
| Heart time lost to host stalls | +4948056.917 ms |
| Atomic round trip | +10.911 ms |