Each clock against atomic time (pool.ntp.org), sampled every 30 s.
| Heart (set once) | -355018.718 ms |
| Heart (set every hour) | -5427.116 ms |
| Raw crystal (set once) | +1813.137 ms |
| Raw crystal (set every hour) | +30.535 ms |
| This machine's own clock | -2.090 ms |
| Heart time lost to host stalls | +356831.192 ms |
| Atomic round trip | +5.689 ms |